ay gt \ WW Ye BOT WATSONIA THE JOURNAL OF THE BOTANICAL SOCIETY OF THE BRITISH ISLES VOLUME 22 } ‘AN \ (\ AUG 17 2009 13 LIBRARIES EDITED BY M. BRIGGS, J. R. EDMONDSON, D. L. KELLY, D. A. PEARMAN, C. D. PRESTON, B.S. RUSHTON, M. N. SANFORD, D. A. SIMPSON 1998-99 PRINTED FOR THE SOCIETY BY THE BOOK COMPANY, IPSWICH, SUFFOLK PUBLISHED AND SOLD BY THE BOTANICAL SOCIETY OF THE BRITISH ISLES, C/O DEPARTMENT OF BOTANY, THE NATURAL HISTORY MUSEUM, LONDON 5W7 5BD ey p. 189 line 21 up. p. 253 after last line. p. 281 after last line p. 287 header p. 293 header p. 297 header DATES OF PUBLICATION Part 1, pp. 1-142, February 1998 Part 2, pp. 143-208, August 1998 Part 3, pp. 209-300, February 1999 Part 4, pp. 301-449, August 1999 Errata For: palustris read: palustre Insert: occur. Despite these problems, changes in the records over time indicate the general trends. Insert: 5mm; nodes and leaf bases green; inflorescence PACCIMOSG sic ccn tue aneewan a oseene sates punctata For: p—p read: 287-291 For: p—p read: 293-295 For: p—p read: 297-300 ili INDEX WATSONIA VOLUME 22 (1998-99) Prepared by C. R. Boon Adiantum capillus-veneris 142, 300 x Agropogon littoralis 113; robinsonii (Druce) Melderis & D. C. McClint. 113-114 Agrostemma githago 255 Agrostis 113, 441; capillaris 113, 366; curtisii 366, 437; semiverticillata 113; stolonifera 113, 114, 334, 336, 399, 421, 428; stolonifera x Polypogon monspeliensis 113; stolonifera x Polypogon viridis 113; vinealis 42, 45 Aira caryophyllea 257; praecox 45, 257 Akeroyd, J. (ed.) — The wild plants of Sherkin, Cape Clear and adjacent islands of West Cork (Bk Rev.) 195 Akeroyd, J. R. — Rev. of The making of the Cretan landscape (by O. Rackham & J. Moody) 120-121 Akeroyd, J. R. — Rev. of The new Oxford book of food plants (by J. G. Vaughan & C. A. Geissler) 202 Aksoy, A., Hale, W. H. G. & Dixon, J. M. - Towards a_ simplified taxonomy of Capsella_ bursa-pastoris (L.) Medik. (Brassicaceae) 243-250 Alchemilla 441 Alisma gramineum subsp. wahlenbergii 122; lanceolatum 437; plantago-aquatica 170, 301 Allen, D. E. — Five new species of Rubus L. (Rosaceae) with transmarine ranges 83-96 Allen, D. E. — Rubus campaniensis Winkel ex Beek (Rosaceae) in Britain 429-430 Allen, D. E. — Typification of some Barton & Riddelsdell names in Rubus L. (Rosaceae) 181 Allen, D. E. — Rev. of A dictionary of plant-lore (by R. Vickery) 124-125 Allen, D. E. — Rev. of Between seasons and science (by P. Faasse) 287-288 Allium 271; ampeloprasum 299, vineale 421 Alopecurus borealis 109, 110; bulbosus 299; geniculatus 399 Amelanchier 440 America, North. Flora of North America north of Mexico. Volume 3: Magnoliophyta: Magnoliidae and Hamamelidae (Bk Rev.) 195-196 Ammophila arenaria 42, 44, 115, 421 Anagallis arvensis 115; minima 141, 433 Androcymbium rechingeri 121 Andromeda polifolia 211, 221, 222 Anisantha madritensis 142 Annual General Meeting (1997) (Rpt) 139-141, (Fld Mtg Rpt) 141-142, (1998) (Rpt) 297— 298, (Fid Mtg Rpt) 298-300 Antennaria dioica 115 Anthriscus caucalis 142 Anthyllis vulneraria 182 Apium inundatum 30, 31, 336; nodiflorum 119, 337; repens 119 Arbutus unedo 121 Arctium 123 Arenaria serpyllifolia 44, 441 Armeria maritima 142, 191, 192 Artemisia vulgaris 113 Arum italicum — subsp. maculatum 299 Asparagus officinalis subsp. prostratus 142 Asplenium adiantum-nigrum 439, — subsp. corrunense 439, subsp. silesiacum 439; x badense 117; ceterach 117; fontanum 117; ramosum 117; trichomanes-ramosum 117; viride 117, 123 Astragalus 448 Azolla 439 neglectum 142; Bailey, J. P., with C. D. Preston & P. M. Hollingsworth — A reassessment of the hybrid Potamogeton x gessnacensis G. Fisch. (P. natans x P. polygonifolius, Potamogetonaceae) in Britain 61-68 Baldellia ranunculoides 30, 301, 302, 310, 334 Barbarea stricta 22, 26 Barratt, D. R., Walker, K. J., Pywell, R. F., Mountford, J. O. & Sparks, T. H. — Variation in the responses of infraspecific variants of wet grassland species to manipulated water levels 317-328 Barter, G. & Woodman, J. — Field excursions held in conjunction with the A.G.M. 1998 (Fld Mtg Rpt) 298-300 Bataille, A. — Obit. of Nicholas Polunin C.B.E., M.S., D. Phil., D.Sc., F.L.S., F.R.G:S. (1909-1997) 203-205 451 452 Bateman, R. M. — Rev. of Notes on the British and Irish Orchids (by D. M. Turmer Ettlinger) 201—202 Bellis perennis 115, 182 Berberis 196 Betula nana 219; pendula 261, 366 Bidens cernua 399; tripartita 399 Blackstock, T. H. & Roberts, R. H. — Trifolium occidentale D. E. Coombe (Fabaceae) in Anglesey (v.c. 52) 182-184 Book Reviews 117-125, 195-202, 287-291, 433-441 Borago officinalis 142 Botrychium lunaria 141 Bowen, H. J. M. — Rev. of The atlas flora of Somerset (by P. R. Green, I. P. Green & G. A. Crouch) 436-437 Brachypodium pinnatum 409 Brachythecium 44 Brassica oleracea 27 Briza minor 26, 27 Bromus hordeaceus 182; lepidus 26 Bull, A. L. — Four new species of Rubus L. (Rosaceae) from eastern England 97—104 Bullock, J. M., Connor, J., Carrington, S. & Edwards, R. J. - Chromosome numbers and flower sizes of Ulex minor Roth. and Ulex gallii Planch. in Dorset 143-152 Bullock, J. M., with F. Kirchner — Taxonomic separation of Ulex minor Roth. and U. gallii Planch.: morphometrics and chromosome counts 365-376 Bupleurum fruticosum 45 Bursa bursa-pastoris 249; heegeri 249 Butomus umbellatus 30, 122 Byfield A. J. & Pearman, D. A. — Dorset’s disappearing heathland flora (Bk Rev.) 433 Cabomba caroliniana 119 Cakile 423; maritima 422 Calamagrostis 446; canescens 43 Calla palustris 119 Callitriche 26, 170, 284, 285 (illus.), 441; brutia 22, 26, 283, 285 Gllus:);jassemr 284: hamulata 64, 283, (Gllus.):— 285.2 335; hermaphroditica 30, 283, 284, 334; obtusangula 30, °283,.° 285 *\/allus.); platycarpa 283, 285 (illus.); pulchra 284; stagnalis 283, 285 (illus.); truncata 284, 285 (illus.), Guss. subsp. occidentalis (Rouy) Braun-Blanquet (Callitrichaceae). A terrestrial form of, 283-286 INDEX TO WATSONIA VOLUME 22 Calluna vulgaris 45, 211, 219, 227, 228, 300, 347, 366 Caltha palustris 335 Calypogeia arguta 14 Calystegia soldanella 22, 142 Campanula giesekiana 127; rotundifolia 44, 45, 115 Cannabis sativa 443 Capsella 243; agrestis 243; bursa-pastoris (L.) Medik. (Brassicaceae). Towards a simplified taxonomy of, 243-250, 246 (illus.), 247 (map); heegeri 249; praecox 243; ruderalis 243; sabulosa 243; virgata 243 Cardamine pratensis 109, 110, 218 Carduus tenuiflorus 299 Carex 228, 271, 431, 441; acuta 30; acutiformis 30, 432; aquatilis 80; arenaria 42-45, 182, 421; atrofusca 109, 110; binervis 219; diandra 122, var. major 122; dioica 218, 227; disticha 141; elata 30; flacca 115, 218; flava 122; hostiana , 20sag226: lasiocarpa 30, 187, 218; limosa 187, 218, 219; magellanica 219; maritima 109; montana 300, 437; nigra 187, 225, 347; otrubae Podp. (Cyperaceae) using transverse leaf sections. Separation of Carex vulpina L. and, 431-432, 431 (illus.); paleacea 80; panicea 218, 219, 228, 347; paniculata 43; pulicaris 141, 218, 219, 300; recta 80; riparia 30, 432; rostrata 187, 190, 218, 219, 334; rupestris 109, 110; saxatilis 109; A1OiM8iex225- stans 110; vesicaria 30; viridula 122, subsp. brachyrrhyncha 218; vulpina L. and C. otrubae Podp. (Cyperaceae) using transverse leaf sections. Separation of, 431-432, 431 (allus.) Carey, P. D. — Changes in the distribution and abundance of Himantoglossum hircinum (L.) Sprengel (Orchidaceae) over the last 100 years 353-364 Carrington, S., with J. M. Bullock, J. Connor & R. J. Edwards — Chromosome numbers and flower sizes of Ulex minor Roth. and Ulex gallii Planch. in Dorset 143-152 Catapodium marinum 44, 182 Centaurea nigra 318-322, 324, 325, 327, subsp. nemoralis 325, subsp. nigra 325; pumilio 121 Centaurium erythraea 115; pulchellum 435; scilloides 290 Cerastium arcticum 109; diffusum fontanum 441; semidecandrum 141 Ceratophyllum demersum 30, 437 182; INDEX TO WATSONIA VOLUME 22 Chamaemelum nobile 141 Chamerion 197; angustifolium 113 Chara 435; aspera 334, 336, 338; contraria 334, 336; curta 336, 338; globularis var. virgata 64; hispida 334, 336; virgata 334, 336; vulgaris 283, 334, 336 Chater, A. O. — Obit. of William Moreton Condry (1918-1998) 293 Chater, A. O. — Rev. of The Plant-Book: a portable dictionary of the vascular plants. 2nd ed. (by D. J. Mabberley) 197-198 Chenopodium 271 Chionodoxa luciliae 122, 123 Cicendia filiformis 433 Circaea alpina 435; x intermedia 80, 231, 435 Cirsium arvense 113; dissectum 300; dissectum x palustre 141; tuberosum 290 Cladium mariscus 30 Cladonia 42 Clarke, S. J., with P. Lusby & J. Wright — Scottish wild plants (Bk Rev.) 438-439 Cochlearia danica 182, 191-193, 299; officinalis L. (Brassicaceae) and _ other halophytes on the Aberdeen-Montrose main road in north-east Scotland. Colonisation by, 190-193, 191 (map) Coeloglossum viride 112 Coincya 422; monensis (L.) W. Greuter & Burdet subsp. monensis. The potential for seed dispersal by sea water in Coincya wrightii (O. E. Schulz) Stace and, 422-423; wrightii (O. E. Schulz) Stace and C. monensis (L.) W. Greuter & Burdet subsp. monensis. The potential for seed dispersal by sea water in, 422-423 Cole, R. L. — Natives and aliens — the wild flowers and trees of the Langdon Hills (Bk Rev.) 434 Colston, A., Gerrard, C & Parslow, R. — Cambridgeshire’s Red data book including Huntingdonshire, Old Cambridgeshire & The Soke of Peterborough (Bk Rev.) 289-— 290 Condry, W. — Wildflower safari: the life of Mary Richards (Bk. Rev.) 434 Condry, William Moreton, (1918-1998) (Obit.) 293 Connor, J., with J. M. Bullock, S. Carrington & R. J. Edwards — Chromosome numbers and flower sizes of Ulex minor Roth. and Ulex gallii Planch. in Dorset 143-152 Cook, C. D. K. — Rev. of Aquatic plants in Britain and Ireland (by C. D. Preston & J. M. Croft) 119-120 453 Cook, P. J. — Elytrigia repens (L.) Desv. ex Nevski subsp. arenosa (Spenner) A. Love ae in south-east Yorkshire (v.c. 61) Corner, R. W. M. — Northern limits attained by native British plants in North Peary Land, Greenland 109-110 Cornus suecica 219 Coronopus squamatus 45 Corynephorus canescens (L.) P. Beauv. (Poaceae) in Britain and the Channel Islands with particular reference to its conservation. The distribution and status of, 41-47 Cotoneaster 124, 271, 272 Cotula coronopifolia 119 Cousinia 448 Crambe maritima 141, 422 Crassula helmsii 401; tillaea 141, 433 Cratoneuron commutatum subsp. falcatum 115 Crepis capillaris 45 Crithmum maritimum 142 Croft, J. M., with C. D. Preston — Aquatic plants in Britain and Ireland (Bk Rev.) 119-120 Crotalaria 132 Crouch, G. A., with P. R. Green & I. P. Green — The atlas flora of Somerset (Bk Rev.) 436— 437 Cruciata laevipes 437 Ctenidium molluscum 115 Cynodon dactylon 290 Cyperus fuscus L. (Cyperaceae), Brown Galingale. Conservation of Britain’s biodiversity:, 397-403, 122, 398 (map) Cypripedium 131 Cystopteris alpina 117; fragilis 109, 110 Dactylorhiza 122; fuchsii 113, 201; incarnata 218; lapponica 122; maculata subsp. ericetorum 218; majalis subsp. cambrensis 202, subsp. ebudensis 202, subsp. lapponica 202, subsp. traunsteineri var. bowmannii 202; praetermissa 141; traunsteineri 122, 437; x venusta 113 Dahl, E. — The phytogeography of northern Europe (British Isles, Fennoscandia and adjacent areas) (Bk Rev.) 290-291 Dandy, J. E. & Taylor, G. — Studies of British Potamogetons. — XIX. x Potamogeton sudermanicus in Britain 165-166 454 Daniels, R. E., McDonnell, E. J. & Raybould, A. F. — The current status of Rumex rupestris Le Gall (Polygonaceae) in England and Wales, and threats to its survival and genetic diversity 33-39 Dearnley, T. C. & Duckett, J. G. — Juniper in the Lake District National Park. A review of condition and regeneration 261—267 Deschampsia 441; cespitosa 45, 223, 240, subsp. alpina 228; flexuosa 43, 122, 219, var. montana 122; setacea 141 Dianthus gratianopolitanus 437 Dicentra eximia 196; formosa 196 Dicranum scoparium 221 Diploschistes muscorum 115 Ditrichium flexicaule 115 Dixon, J. M., with A. Aksoy & W. H. G. Hale — Towards a_ simplified taxonomy of Capsella bursa-pastoris (L.) Medik. (Brassicaceae) 243-250 Doogue, D., Nash, D., Parnell, J., Reynolds, S., Wyse Jackson, P. (eds.) — Flora of County Dublin (Bk Rev.) 435 Drepanocladus revolvens 115 Drosera 227; anglica 123; longifolia 211, 222, 228; rotundifolia 211,,218,-219, 221, 222, 228 Dryas octopetala 294 Dryopteris affinis 439; x complexa 439; dilatata 447; expansa 447 Duckett, J. G., with T. C. Dearnley — Juniper in the Lake District National Park. A review of condition and regeneration 261—267 Dudman, A. A. & Richards, A. J. — Dandelions of Great Britain and Ireland. B.S.B.LI. Handbook No. 9 (Bk Rev.) 436 Ebenus cretica 120 Edgington, M. J. — Erica ciliaris L. (Ericaceae) discovered in the Blackdown Hills, on the Somerset-Devon border (v.c. 3) 426-428 Edwards, R. J., with J. M. Bullock, J. Connor & S. Carrington — Chromosome numbers and flower sizes of Ulex minor Roth. and Ulex gallii Planch. in Dorset 143-152 Elatine hexandra 30 Eleocharis acicularis 30; palustris 334, 336, 338; quinqueflora 141, 218 Eleogiton fluitans 30, 170 Ellis, G. - Annual General Meeting (1997) (Rpt) 139-141, (1998) (Rpt) 297-298 sei a ac 169, 170, 334, 337; nuttallii INDEX TO WATSONIA VOLUME 22 Elytrigia atherica 421, repens (L.) Desv. ex Nevski subsp. arenosa (Spenner) A. Léve (Poaceae) in south-east Yorkshire (v.c. 61) 421, 46, subsp. repens var. aristata 421 Empetrum nigrum 228 Entodon concinnus 115 Epilobium, 49, 50, 56, 59, 197, 417, 441; hybrid from Scotland, E. pedunculare A. Cunn. x E. montanum L. A new, 417-419; x brunnatum Kitchener & McKean, hybr. nov. 51, 52, 53 (illus.), 55, 57, 58 (allus.), 59; brunnescens (Cockayne) Raven & Engelhorn (Onagraceae) and _ their occurrence in the British Isles. Hybrids of, 49-60, 197, 417; brunnescens x ciliatum 50, 51; brunnescens x lanceolatum 51, 52; brunnescens x montanum 50-52, 55; brunnescens x obscurum 50, 51, 54; brunnescens x palustre 51, 55; x chateri Kitchener & McKean, hybr. nov. 55, 56 (illus.), 57, 59; ciliatum 49-52, 55, 57, 59, 417; ciliatum x montanum 51; ciliatum x parviflorum 51; x confusilobum Kitchener & McKean, hybr. nov. 52, 57; x cornubiense Kitchener & McKean, hybr. nov. 52, 57; erectum 49; hirsutum 51; x kitcheneri McKean, hybr. nov. 417, 418 (illus.); Janceolatum 49, 51, 52, 57; linnaeoides 417; montanum 49-51, 57, 59, 113, 417, 419; nerteroides 50; x obscurescens Kitchener & McKean, hybr. noy. 54, 54 (illus.), 55, 57,358 i@lius>; obscurum 49-51, 57-59, 419, 435; palustre 49-51, 57, 59; parviflorum 49, 51; pedunculare 49, 417, 419; pedunculare A. Cunn. x E. montanum L.. A new Epilobium hybrid from Scotland, 417-419 Epipactis 198; helleborine subsp. neerlandica 202; purpurata 26; youngiana 202 Epipogium aphyllum 201 Equisetum 439, 441; arvense 109, 110, 113, 187, var. alpestre 188; fluviatile 334, 336; hyemale. 22; palustre 188. p28: ramosissinum 439; sylvaticum 439; variegatum 109, 110 Erica arborea 121; ciliaris L. (Ericaceae) discovered in the Blackdown Hills, on the Somerset-Devon border (v.c. 3) 426428; cinerea 45, 366; tetralix 211, 218, 219, 227, 228, 300, 366, 427; x watsonii 427 Eriophorum angustifolium 211, 218, 225, 227, 427; latifolium 213, 218, 228; vaginatum 21213, 208228457 Erodium cicutarium 44, 182, 421; maritimum 46, 299; moschatum 27 INDEX TO WATSONIA VOLUME 22 Erophila (Brassicaceae) taxa sensu Filfilan & Elkington in Britain and Ireland. Use of herbarium material for mapping the distribution of, 377-385, 378 (map); glabrescens 378, 380, 381 (map), 383-385; majuscula 378, 379 (map), 380, 381, 383, 384; verna 378, 380 (map), 383 (map), 384 (map), 385, subsp. spathulata 385, var. praecox 381, (map) 382, 385; virescens 381 Eryngium maritimum 22, 142 Euphorbia portlandica 142 Euphrasia 115, 124, 198, 271 Faasse, P. — Between seasons and science (Bk Rev.) 287-288 Ferguson, D. A. (ed.), with L. A. Lauener — The introduction of Chinese plants into Europe (Bk Rev.) 118-119 Festuca ovina 115, 300, subsp. hirtula 45; rubra 182, 421; vivipara 218, 219, 228 Filago 251, 257; apiculata 251; arvensis 257; gallica 251, 255-257; lutescens Jordan (Asteraceae), Red-tipped Cudweed. Conservation of Britain’s biodiversity:, 251-260, 252 (map), 253 (map), subsp. atlantica 252, 253 (map), subsp. lutescens 252; minima 251, 257; pyramidata 251, 252, 255-257; vulgaris 251-253, 256, 257 Flora of North America Editorial Committee 455 Geranium 271; x oxonianum 281; purpureum 142; rotundifolium 142; tuberosum 121 Gerrard, C., with A. Colston & R. Parslow — Cambridgeshire’s Red data book including Huntingdonshire, Old Cambridgeshire & The Soke of Peterborough (Bk Rev.) 289- 290 Geum rivale 141 Gilia 440 Gladiolus communis 142 Glaucium flavum 22, 141 Glaux maritima 44 Glyceria fluitans 170, 399; maxima 276 Gnaphalium uliginosum 399 Goodyera repens 348 Gornall R. J. — Rev. of The natural history of pollination (by M. Proctor, P. Yeo & A. Lack) 439-440 Gornall, R. J., with C. D. Preston & P. M. Hollingsworth — Potamogeton pectinatus L. x P. vaginatus Turcz. (P. x bottnicus Hagstr.), a newly identified hybrid in the British Isles 69-82 Gornall, R. J., with C. D. Preston & P. M. Hollingsworth The distribution and habitat of Potamogeton x suecicus K. Richt. (P. filiformis Pers. x P. pectinatus L.) in the British Isles 329-342 (eds.) — Flora of North America north of Green, I. P., with P. R. Green & G. A. Crouch — Mexico. Volume 3: Magnoliophyta: Magnoliidae and Hamamelidae (Bk Rev.) 195-196 Fontinalis antipyretica 170, 334 Fragaria moschata 123 Frankenia laevis 300 Friday, L. (ed.) — Wicken Fen. The making of a wetland nature reserve (Bk Rev.) 288-289 Fritillaria meleagris 199 Fumaria 440 Galeopsis 440 Galium verum 45, 115, 182, 300, 421 Geissler, C. A., with J. G. Vaughan — The new Oxford book of food plants (Bk Rev.) 202 Genista anglica 141, 300; tinctoria 141 Gentiana pneumonanthe 141 Gentianella 111, 114, 428, 429; amarella 111, 112, 114, 428; anglica 142; campestris 111, 112, 115; uliginosa (Willd.) Boerner, Dune Gentian, on Colonsay (v.c. 102) in 1996. Population sizes of, 111-113, (Willd.) Boerner (Gentianaceae) found in Colonsay (v.c. 102), new to Scotland 114— 116, (Willd.) Borner (Gentianaceae) rediscovered in north Devon 428-429 The atlas flora of Somerset (Bk Rev.) 436— 437 Green, P. R., Green, I. P. & Crouch, G. A. — The atlas flora of Somerset (Bk Rev.) 436—437 Greenland. Northern limits attained by native British plants in North Peary Land, 109- 110 Groenlandia 26; densa 24 Gulliver, R. L. — Population sizes of Gentianella uliginosa (Willd.) Boerner, Dune Gentian, on Colonsay (v.c. 102) in 1996 111-113 Hackney, P. — Obit of Doreen Sylvia Lambert O.B.E. (1915-1996) 127-128 Hale, W. H. G., with A. Aksoy & J. M. Dixon — Towards a_ simplified taxonomy of Capsella bursa-pastoris (L.) Medik. (Brassicaceae) 243-250 Halliday, G. — A Flora of Cumbria (Bk Rev.) 196-197 Halliday, G. — Rev. of Dandelions of Great Britain and Ireland. B.S.B.I. Handbook No. 9 (by A. A. Dudman & A. J. Richards) 436 Hammarbya paludosa 219 456 Hawkes, J. — Obit. of John Heslop-Harrison (1920-1998) 443-445 Hedera 441 Helianthemum apenninum 437; canum 123; nummularium 300; oelandicum 123 Heracleum mantegazzianum 413 Herniaria glabra 290 Heslop-Harrison, John, (1920-1998) (Obit.) 443-445 Hieracium 122, 124, 197, 198, 437, 440 Himantoglossum hircinum (L.) Sprengel (Orchidaceae) over the last 100 years. Changes in the distribution and abundance of, 353-364, 358 (map), 359 (map) Hippophaé rhamnoides 421 Hippuris vulgaris 30, 334, 336 Holcus lanatus 113, 428 Hollingsworth, P. M. — Rev. of Plant breeding systems. 2nd ed. (by A. J. Richards) 198 Hollingsworth, P. M. & Swan, G. A. — Genetic differentiation and hybridisation among subspecies of Deergrass (Trichophorum cespitosum (L.) Hartman) in Northumberland 235-242 Hollingsworth, P. M., with C. D. Preston & J. P. Bailey — A reassessment of the hybrid Potamogeton x gessnacensis G. Fisch. (P. natans x P._ polygonifolius, Potamogetonaceae) in Britain 61-68 Hollingsworth, P. M., with C. D. Preston & R. J. Gornall — Potamogeton pectinatus L. x P. vaginatus Turcz. (P. x bottnicus Hagstr.), a newly identified hybrid in the British Isles 69-82 Hollingsworth, P. M., with C. D. Preston & R. J. Gornall — The distribution and habitat of Potamogeton x suecicus K. Richt. (P. filiformis Pers. x P. pectinatus L.) in the British Isles 329-342 Holyoak, D. T. — Gentianella uliginosa (Willd.) Bomer (Gentianaceae) rediscovered in north Devon 428-429 Homogyne alpina 294 Hornungia petraea 45 Hottonia palustris 400, 437 Huperzia selago 117, 123; suberecta 117 Hutchings, M. J., with B. R. Wheeler — The history and distribution of Phyteuma spicatum L. (Campanulaceae) in Britain 387-395 Hutchinson, G. & Thomas, B. A. — Welsh ferns, clubmosses, quillworts and horsetails. 7th ed. (Bk Rev.) 117 Hydrocharis 435; morsus-ranae 437 INDEX TO WATSONIA VOLUME 22 Hydrocotyle ranunculoides 119; vulgaris 170, 428 Hymenophyllum 441; tunbrigense 2 Hyoscyamus aureus 120 Hypericum elodes 119 Hypnum cupressiforme var. lacunosum 115 Hypochaeris glabra 257; radicata 44, 45, 182 Innes, M., with D. Welch Southward recolonisation by Mertensia maritima (L.) Gray on the coast of north-eastern Scotland 424-426 Inula crithmoides 142 Isoetes 301; echinospora 30, 447; lacustris 30, 64, 447 Isopterygium elegans 14 Jasione montana 44 Jermy, A. C. — Obit. of Olga Margaret Stewart (1920-1998) 445-447 Jermy, A. C. — Rev. of The ferns of Britain and Treland. 2nd ed. (by C. N. Page) 439 Jermy, A. C., with T. C. G. Rich — Plant crib 1998 (Bk Rev.) 440-441 Jermy, A. .C., with F..J.. Rumsey a GE. Sheffield — The independent gametophytic stage of Trichomanes speciosum Willd. (Hymenophyllaceae), the Killarney Fern and its distribution in the British Isles 1-19 John, R. F., with Q. O. N. Kay & R. A. Jones — Biology, genetic variation and conservation of Luronium natans (L.) Raf. in Britain and Ireland 301-315 Jones, D. — The botanists and guides of Snowdonia (Bk Rev.) 117-118 Jones, R. A., with Q. O. N. Kay & R. F. John — Biology, genetic variation and conservation of Luronium natans (L.) Raf. in Britain and Treland 301-315 Jubula hutchinsiae 14 Juncus 122, 271; acutiflorus 433; albescens 110; articulatus 283; biglumis 109; bufonius 26, 382, 399; bulbosus 64, 170, 188, 189; castaneus 109, 110; effusus 43; foliosus 26; maritimus var. atlanticus 122, var. compactus 123, var. congestus 123, var. longipedicellatus 123; obtusifolius 168; ranarius 22, 26; squarrosus 43, 211; subnodulosus 300; triglumis 109, 110 Juniperus communis. Juniper in the Lake District National Park. A review of condition and regeneration 261-267, 262 (map), 348, subsp. communis 261, subsp. nana 261 INDEX TO WATSONIA VOLUME 22 Jury, S. L. — Rev. of The Flora of Oxfordshire (by J. Killick, R. Perry & S. J. Woodell) 437-438 Kay, Q. O. N., John, R. F. & Jones, R. A. — Biology, genetic variation and conservation of Luronium natans (L.) Raf. in Britain and Ireland 301-315 Keylock, J. G. — Obit. of Captain R. G. B. Roe O.B.E., R.N. 205 Killick, J., Perry, R. & Woodell, S. J. — The Flora of Oxfordshire (Bk Rev.) 437-438 Kirchner, F. & Bullock, J. M. — Taxonomic separation of Ulex minor Roth. and U. gallii Planch.: morphometrics and chromosome counts 365-376 Kitchener, G. D. & McKean, D. R. — Hybrids of Epilobium brunnescens (Cockayne) Raven & Engelhorn (Onagraceae) and _ their occurrence in the British Isles 49-60 Kobresia simpliciuscula 109, 110 Koeleria vallesiana 437 Koenigia islandica 109 Lack, A., with M. Proctor & P. Yeo — The natural history of pollination (Bk Rev.) 439-440 Lack, H. W. — Obit. of Karl-Heinz Rechinger Phil. Doc. (Vindob.) FMLS (1906-1998) 447-449 Lagarosiphon major 119 Lagurus ovatus 45 Lambert, Doreen Sylvia, O.B.E. (1915-1996) (Obit.) 127-128 Lambrick, C. R., with T. C. G. Rich & C. McNab Conservation of Britain’s biodiversity: Salvia pratensis L. (Lamiaceae), Meadow Clary 405-411 Lansdown, R. V. — A terrestrial form of Callitriche truncata Guss. subsp. occidentalis (Rouy) Braun-Blanquet (Callitrichaceae) 283-286 Larix decidua 348 Lathyrus aphaca 141, palustris 289, 437 Lauener, L. A., with D. A. Ferguson (ed.) — The introduction of Chinese plants into Europe (Bk Rev.) 118-119 Leach, S. J. — Rev. of Dorset’s disappearing heathland flora (by A. J. Byfield & D. A. Pearman) 433 Leersia oryzoides 205 Lemna minor 76, 170, 334, 336; minuta 170; trisulca 30, 170, 334 142; japonicus 425; 457 Leontodon saxatilis 428 Leucojum vernum 437 Lewis, J., with T. C. G. Rich — Use of herbarium material for mapping the distribution of Erophila (Brassicaceae) taxa sensu Filfilan & Elkington in Britain and Ireland 377-385 Leymus arenarius 425 Limonium 441; dodartiforme 142; recurvum 142 Linnaea borealis 344, 348 Linum bienne 142; catharticum 115 Liparis loeselii 289 Listera cordata 344, 437 Lithospermum purpureocaeruleum 299 Littorella uniflora 34, 64, 66, 189, 301, 336 Lloydia serotina 118 Lobelia dortmanna 30, 64, 189 Lotus 319, 321, 324, 326, 327; corniculatus 45, 115, 182, 318, 321, 323-326, 428; glaber 326; pedunculatus 321, 323, 324, 326 Luronium 197; natans (L.) Raf. in Britain and Ireland. Biology, genetic variation and conservation of, 301-315, 30, 307 (map), 311 (map) Lusby, P., Wright, J. & Clarke, S. J. — Scottish wild plants (Bk Rev.) 438-439 Lusby, P. S., with J. A. Wright — The past and present status of Moneses uniflora (L.) Gray (Pyrolaceae) in Scotland 343-352 Luzula 122; campestris 45; multiflora 113, 123, 124, 219, 382, subsp. frigida 123, subsp. hibernica 123 Lycopodiella inundata 433 Lycopodium annotinum 344 Lycopus europaeus 119 Lysimachia 279, 281 (key); ciliata 279-281; punctata L. and L. verticillaris Sprengel (Primulaceae) naturalised in the British Isles 279-281; terrestris 279; verticillaris Sprengel (Primulaceae) naturalised in the British Isles. Lysimachia punctata L. and, 279-281; verticillata 279; vulgaris 279- 281 Mabberley, D. J. — The Plant-Book: a portable dictionary of the vascular plants. 2nd ed. (Bk Rev.) 197-198 Macpherson, P. & Stace, C. A. — x Agropogon robinsonii (Druce) Melderis & D. C. McClint. 113-114 Mahonia 196 Marren, P. — Rev. of Wicken Fen. The making of a wetland nature reserve (ed. by L. Friday) 288-289 458 Marren, P., with M. Rothschild — Rothschild’s reserves: time and fragile nature (Bk Rev.) 198-200 McAllister, H. A. — Lysimachia punctata L. and L. verticillaris Sprengel (Primulaceae) naturalised in the British Isles 279-281 McAllister, H. A. — Urtica galeopsifolia Wierzb. ex Opiz (Urticaceae) confirmed for Britain by its chromosome number 275-278 McCosh, D. J. — Rev. of A Flora of Cumbria (by G. Halliday) 196-197 McDonnell, E. J., with R. E. Daniels & A. F. Raybould — The current status of Rumex rupestris Le Gall (Polygonaceae) in England and Wales, and threats to its survival and genetic diversity 33-39 McKean, D. R. — A new Epilobium hybrid from Scotland, E. pedunculare A. Cunn. x E. montanum L. 417-419 McKean, D. R., with G. D. Kitchener — Hybrids of Epilobium brunnescens (Cockayne) Raven & Engelhorn (Onagraceae) and their occurrence in the British Isles 49-60 McNab, C., with T. C. G. Rich & C. R. Lambrick - Conservation of Britain’s biodiversity: Salvia pratensis L. (Lamiaceae), Meadow Clary 405-411 Medicago arabica 299; lupulina 181; polymorpha 142, 299 Melampyrum 441 Mentha aquatica 170, 335, 399 Menyanthes trifoliata 64, 188, 218, 219, 231 Mercurialis perennis 435 Mertensia maritima (L.) Gray on the coast of north-eastern Scotland. Southward recolonisation by, 424-426, 425 (map) Milne-Redhead, Edgar W. B. H., M.B.E., I.S.O., T.D. (1906-1996) (Obit.) 128-137 Minuartia rubella 109; sedoides 439 Moenchia erecta 257 Molinia 433; caerulea 211, 217, 219, 229, 300, 366, 427 Moneses grandiflora 349; uniflora (L.) Gray (Pyrolaceae) in Scotland. The past and present status of, 343-352, 344 (map), 438 Monotropa hypopitys 22 Moody, J., with O. Rackham — The making of the Cretan landscape (Bk Rev.) 120-121 Mountford, J. O., with D. R. Barratt, K. J. Walker, R. F. Pywell & T. H. Sparks — Variation in the responses of infraspecific variants of wet grassland species to manipulated water levels 317-328 INDEX TO WATSONIA VOLUME 22 Murrell, G., with P. D. Sell — Flora of Great Britain and _ Ireland. Volume _ 5. Butomaceae—Orchidaceae (Bk Rev.) 122— 123 Muscari azureum 123 Myosotis discolor 257; scorpioides 119 Myrica cerifera 196; gale 227, 228, 300; pensylvanica 196 Myriophyllum 441; alterniflorum 64, 67, 188, 189, 335, 337; aquaticum 401; spicatum 30, 77, 283, 334, 336 Narcissus tazzetta 142 Nardurus lachenalii 257 Nardus stricta 437 Narthecium ossifragum 211, 219, 221, 222, 227, 427 Nash, D., with D. Doogue, J. Parnell, S. Reynolds & P. Wyse Jackson (eds.) — Flora of County Dublin (Bk Rev.) 435 Needham, M., with J. Parnell — Morphometric variation in Irish Sorbus L. (Rosaceae) 153-161 Nitella flexilis 189; opaca 189 Notes 109-116, 181-193, 283-286, 421-432 Nuphar x spenneriana 80, 231 Obituaries 127-138, 203-207, 293-295, 443- 449 Odontites 124 Oenanthe aquatica 400; fistulosa 30; lachenalii 283; pimpinelloides 141 Oenothera 441 Ononis repens 182, 421 Ophioglossum vulgatum 141 Ophrys 105; apifera Hudson (Orchidaceae). A new variety of, 105-107, var. aurita 105, 106, var. belgarum D. M. T. Ettlinger var. nov. 107, f. bicolor 106, var. bicolor 105, 106, f. botteronii 106, f. chlorantha 105, var. chlorantha 106, f. flavescens 106, var. flavescens 105, var. friburgensis 106, subsp. jurana f. botteronii 105, subsp. jurana vat. friburgensis 105, subsp. jurana f. saraepontana 105, var. pseudotrollii 107, f. trollii 106, var. trollii 105-107; insectifera 122 Orchis mascula subsp. ebudium 202 Oreopteris limbosperma 437 Origanum dictamnus 120 Ornithogalum angustifolium 299 Ornithopus perpusillus 44, 257 Orobanche hederae 142 INDEX TO WATSONIA VOLUME 22 Oswald, P. H. — Rev. of The botanists and guides of Snowdonia (by D. Jones) 117- 118 Oxyria digyna 109, 110 Oxytropis halleri 294, 438 Paeonia mascula 299 Page, C. N. — The ferns of Britain and Ireland. 2nd ed. (Bk Rev.) 439 Papaver bracteatum 196; dubium subsp. lecogii 142; orientale 196; pseudoorientale 196 Parapholis incurva 142 Parnell, J. & Needham, M. — Morphometric variation in Irish Sorbus L. (Rosaceae) 153-161 Parnell, J., with D. Doogue, D. Nash, S. Reynolds & P. Wyse Jackson (eds.) — Flora of County Dublin (Bk Rev.) 435 Parslow, R., with A. Colston & C. Gerrard — Cambridgeshire’s Red data book including Huntingdonshire, Old Cambridgeshire & The Soke of Peterborough (Bk Rev.) 289- 290 Pastinaca 435 Paullinia cupana 197 Pearman, D. Field excursions held in conjunction with the A.G.M. 1997 (Fld Mtg Rpt) 141-142 Pearman, D. A. — Rev. of Wildflower safari: the life of Mary Richards (by W. Condry) 434 Pearman, D. A., Preston, C. D., Roy, D. B. & Stewart, A. The use of B.S.B.I. Monitoring Scheme data to _ predict nationally scarce species in Britain 21—28 Pearman, D. A., with A. J. Byfield — Dorset’s disappearing heathland flora (Bk Rev.) 433 Pearman, D. A., with C. D. Preston — Aquatic plants at high altitudes in the Breadalbane Mountains (v.c. 88), Scotland 187-190 Pearman, D. A., with C. D. Preston — J. E. Dandy & G. Taylor’s unpublished study of Potamogeton x sudermanicus Hagstr. in Britain, with an account of the current distribution of the hybrid 163-172 Pedicularis palustris 218; sylvatica 141 Peltigera 44 Perring, F. H. — Rev. of Cambridgeshire’s Red data book including Huntingdonshire, Old Cambridgeshire & The Soke _ of Peterborough (by A. Colston, C. Gerrard & R. Parslow) 289-290 Perring, F. H. — Rev. of Red data book for Cornwall and the Isles of Scilly (ed. by A. Spalding) 289-290 459 Perry, R., with J. Killick & S. J. Woodell — The Flora of Oxfordshire (Bk Rev.) 437-438 Persicaria amphibia 67, 170, 334, 336, 338; campanulata 281; hydropiper 399; maculosa 399; minor 400; vivipara 109, 110 Petramarula pinnata 120 Petroselinum segetum 141 Phillyrea angustifolia 283 Phleum arenarium 44, 142; phleoides 290 Phoenix theophrasti 120 Phragmites australis 170, 218, 334 Phyllodoce caerulea 438 Phyteuma 387; orbiculare 387; scheuchzeri 387; spicatum L. (Campanulaceae) in Britain. The history and distribution of, 387-395, 390 (map), subsp. coeruleum 387, 388, subsp. spicatum 387 Picea abies 178 Pigott, C. D. — Rev. of The phytogeography of northern Europe (British Isles, Fennoscandia and adjacent areas) (by E. Dahl) 290-291 Pilosella officinarum 45, 115 Pilularia globulifera 29-31; 447 Pinguicula grandiflora 205; lusitanica 294; vulgaris 115, 218, 228, 300 Pinus sylvestris 344, 366 Plantago coronopus 115, 182, 299, 421; lanceolata 115, 182; maritima 115, 191 Poa alpina 228; bulbosa 45, 299, var. vivipara 299; glauca 109; palustris 26; pratensis 182 Polunin, Nicholas, C.B.E., M.S., D. Phil., D.Sc., F.L.S., F.R.G.S. (1909-1997) (Obit.) 203- 205 Polycarpon tetraphyllum 142 Polygala serpyllifolia 218, 219; vulgaris 115 Polygonum campanulatum 281 Polypodium 124; cambricum 142 OTe 113; monspeliensis 113; viridis 113, ja Polytrichum piliferum 42 Populus 174; sect. Aigeiros 174; sect. Tacamahaca 174; alba 176; betulifolia 175; x canadensis 173; deltoides 174, 176; deltoides x nigra 173; x euramericana 173; europaea 174; henryana_ 175; hudsonica 175; lloydii 175; mulleriana 175; nigra L.). Genetic conservation of Black Poplar (, 173-179, 174 (illus.), 175 (map), subsp. betulifolia 175, 176, var. betulifolia 175, 176, var. dodeana 174, var. europaea 174, var. hudsonica 175, ‘Italica’ 460 176, var. pubescens 175, var. typica 174, 175;- vars: viridis <1/5;" pubescens’ 175: tremula 176; trichocarpa 174; vaillantiana 175; vistulensis 175 Porley, R. D. — Separation of Carex vulpina L. and C. otrubae Podp. (Cyperaceae) using transverse leaf sections 431-432 Potamogeton 26, 61, 63, 69, 80, 124, 163-165, 168, 1715 185, 2087, 271, 301, 329... 330, 332, 340, 435, 440; subgen. Coleogeton 69-71, 71 (key), 77, 185, 330; acutifolius 24, 163-168, 169 (map), 170, 171; acutifolius x berchtoldii 166; acutifolius x friesii 166; acutifolius x pusillus 165, 166; alpinus 24, 30, 64,188; berchtoldii 24, 64, 163, 165, 167, 169 (map), 170; x billupsii 335, 339; bottnicus 78; x bottnicus Hagstr.), a newly identified hybrid in the British Isles. Potamogeton pectinatus L. x P. vaginatus Turcz. (, 69-82, 331, 332, 336; coloratus 24, 63, 170; compressus 24, 165, 167, 168; crispus 24, 30, 77, 334; epihydrus 24, 63; x fennicus 78; filiformis 24, 67, 69-72, 75-77, 79, 188, 190, 330- 332, 334, 336-340; filiformis Pers. x P. pectinatus L.) in the British Isles. The distribution and habitat of Potamogeton x suecicus K. Richt. (, 329-342, 78; filiformis x vaginatus 78, 79; flabellatus Bab. (Potamogetonaceae). Lectotypification of, 184-186, 71, 79; x fluitans 63, 165; friesii 24, 334; x gessnacensis G. Fisch. (P. natans «x. “P. polygonifolius, Potamogetonaceae) in Britain. A reassessment of the hybrid, 61-68, 62 (illus.), 63 (illus.), 66 (illus.); gramineus 24, 30, 63, 334; gramineus x lucens 189; x griffithii 64; x grovesii 166; x lanceolatus 170,337: .ducens’ 24. 30,;.-63,. 77> meinshausenti 78, 79, 81; natans 24, 61, 63, 64, 65 (key), 67, 170, 189, 332, 334, 336, 338; natans x P._ polygonifolius, Potamogetonaceae) in Britain. A reassessment of the hybrid Potamogeton x gessnacensis G. Fisch. (, 61-68; x nitens 24, 165, 334, 336, 339; nodosus 24, 63; obtusifolius 24, 30; pectinatus 24, 69-79, 170, 185, 186, 330-332, 334, 336-340; pectinatus L. x P. vaginatus Turcz. (P. x bottnicus Hagstr.), a newly identified hybrid in the British Isles 69-82; perfoliatus 24, 30, 67, 76, 77, 188, 334; polygonifolius 24, 61, 63-65, 67, 188, 219; praelongus 24, 64, 188-190; x pseudofriesii 166; pusillus 24, 30, 66, 165, 166, 283, 334, 336; pusillus x trichoides 166; rutilus 24, 335, 339; x salicifolius 24, 77; x schreberi 63, 171; x sparganiifolius INDEX TO WATSONIA VOLUME 22 63, 64, 165, 339; x sudermanicus Hagstr. in Britain, with an account of the current distribution of the hybrid. J. E. Dandy & G. Taylor’s unpublished study of, 163-172, in Britain. Studies of British Potamogetons. — XIX., 165-166, 169 (map); suecicus 340; x suecicus K. Richt. (P. filiformis Pers. x P. pectinatus L.) in the British Isles. The distribution and habitat of, 329-342, 69-72, 75, 76, 78-80, 164, 185, 330 (map); trichoides 24; vaginatus 70-73, 75, 76, 78— 81, 331; x zizii 24, 189, 335; zosteraceus 185, 186 Potentilla anserina 421; erecta 218, 219; neumanniana 437; palustris 218; reptans 421 Preston, C. D. — Lectotypification, of Potamogeton flabellatus Bab. (Potamogetonaceae) 184-186 Preston, C. D. & Croft, J. M. — Aquatic plants in Britain and Ireland (Bk Rev.) 119-120 Preston, C. D. & Pearman, D. A. — Aquatic plants at high altitudes in the Breadalbane Mountains (v.c. 88), Scotland 187-190 Preston, C. D. & Pearman, D. A. — J. E. Dandy & G. Taylor’s unpublished study of Potamogeton x sudermanicus Hagstr. in Britain, with an account of the current distribution of the hybrid 163-172 Preston, C. D., Bailey, J. P. & Hollingsworth, P. M. — A reassessment of the hybrid Potamogeton x gessnacensis G. Fisch. (P. natans x P._ polygonifolius, Potamogetonaceae) in Britain 61-68 Preston, C. D., Hollingsworth, P. M. & Gornall, R. J. — Potamogeton pectinatus L. x P. vaginatus Turcz. (P. x bottnicus Hagstr.), a newly identified hybrid in the British Isles 69-82 Preston, C. D., Hollingsworth, P. M. & Gornall, R. J. — The distribution and habitat of Potamogeton x suecicus K. Richt. (P. filiformis Pers. x P. pectinatus L.) in the British Isles 329-342 Preston, C. D., with D. A. Pearman, D. B. Roy & A. Stewart — The use of B.S.BI. Monitoring Scheme data to _ predict nationally scarce species in Britain 21—28 Proctor, M., Yeo, P. & Lack, A. — The natural history of pollination (Bk Rev.) 439-440 Prunella vulgaris 115 Pseudoscleropodium purum 115 Pteridium 117; aquilinum 43, 44 Ptilium crista-castrensis 348 Puccinellia 122; rupestris 413 INDEX TO WATSONIA VOLUME 22 Pulmonaria longifolia 141 Pulsatilla vulgaris 199 Pywell, R. F., with D. R. Barratt, K. J. Walker, J. O. Mountford & T. H. Sparks — Variation in the responses of infraspecific variants of wet grassland species to manipulated water levels 317-328 Quercus brachyphylla 120; frainetto 120; petraea 174, 437; pubescens 120; robur 174; suber 178 Rackham. O. & Moody, J. — The making of the Cretan landscape (Bk Rev.) 120-121 Radiola linoides 141, 433 Ranunculus 76, 77, 81, 196, 271, 336; subgen. Batrachium 304, 441; arvensis 27; x bachii 336; baudotii 66, 334; bulbosus 182; circinatus 30; flammula 170, 196, 218; fluitans x peltatus 77; hederaceus 283; x kelchoensis 76, 77; x levenensis 80; lingua 30; omiophyllus 64, 124; ophioglossifolius 131; parviflorus 141, 142, 299, 300; penicillatus subsp. pseudofluitans 76, 77, 336; reptans 196; sceleratus 283, 399; trichophyllus 30, 335, 336 Raphanus maritimus 422; raphanistrum subsp. maritimus 300 Ratcliffe, D. A. — Obit. of John Grant Roger (1909-1997) 137-138 Raybould, A. F., with R. E. Daniels & E. J. McDonnell — The current status of Rumex rupestris Le Gall (Polygonaceae) in England and Wales, and threats to its survival and genetic diversity 33-39 Rechinger, Karl-Heinz, Phil. Doc. (Vindob.) FMLS (1906-1998) (Obit.) 447-449 Reports 139-142, 297-300 461 Rich, T. C. G. — Conservation of Britain’s biodiversity: Filago lutescens Jordan (Asteraceae), Red-tipped Cudweed 251- 260 Rich, T. C. G. — The potential for seed dispersal by sea water in Coincya wrightii (O. E. Schulz) Stace and C. monensis (L.) W. Greuter & Burdet subsp. monensis 422-423 Rich, T. C. G. — Rev. of Flora of Great Britain and Ireland. Volume 5. Butomaceae- Orchidaceae (by P. D. Sell & G. Murrell) 122-123 Rich, T. C. G. & Lewis, J. — Use of herbarium material for mapping the distribution of Erophila (Brassicaceae) taxa sensu Filfilan & Elkington in Britain and Ireland 377-385 Rich, T. C. G. & Jermy, A. C. — Plant crib 1998 (Bk Rev.) 440-441 Rich, T. C. G., Lambrick, C. R. & McNab, C. — Conservation of Britain’s biodiversity: Salvia pratensis L. (Lamiaceae), Meadow Clary 405-411 Richards, A. J. — Plant breeding systems. 2nd ed. (Bk Rev.) 198 Richards, A. J., with A. A. Dudman — Dandelions of Great Britain and Ireland. B.S.B.I. Handbook No. 9 (Bk Rev.) 436 Richardsiella 434 Roberts, R. H., with T. H. Blackstock — Trifolium occidentale D. E. Coombe (Fabaceae) in Anglesey (v.c. 52) 182-184 Robson, N. K. B. — Rev. of The introduction of Chinese plants into Europe (by L. A. Lauener, ed. by D. A. Ferguson) 118-119 Roe, Captain R. G. B., O.B.E., R.N. (1911- 1997) (Obit.) 205 Roger, John Grant, (1909-1997) (Obit.) 137- 138 Reynolds, S. C. P. — Rev. of The wild plants of Rorippa nasturtium-aquaticum 399; palustris Sherkin, Cape Clear and adjacent islands of West Cork (ed. by J. Akeroyd) 195 Reynolds, S., with D. Doogue, D. Nash, J. Parnell & P. Wyse Jackson (eds.) — Flora of County Dublin (Bk Rev.) 435 Rhinanthus 320, 325; angustifolius 325; minor 318-320, 325, var. minor 325, subsp. stenophyllus 318, var. stenophyllus 325 Rhynchospora alba 211, 222, 227, 228; fusca 14] Rhytidiadelphus triquetrus 115 Rich, T. C. G. — Conservation of Britain’s biodiversity: Cyperus fuscus L. (Cyperaceae), Brown Galingale 397-403 399; x sterilis 335 Rosa 271, 435; pimpinellifolia 45, 46 Rose, F. — Gentianella uliginosa (Willd.) Boerner (Gentianaceae) found in Colonsay (v.c. 102), new to Scotland 114-116 Rothero, G. P. — Rev. of Scottish wild plants (by P. Lusby, J. Wright & S. J. Ckarke) 438- 439 Rothschild, M. & Marren, P. — Rothschild’s reserves: time and fragile nature (Bk Rev.) 198-200 Roy, D. B., with D. A. Pearman, C. D. Preston & A. Stewart — The use of B.S.BLI. Monitoring Scheme data to _ predict nationally scarce species in Britain 21—28 462 Rubia peregrina 437 Rubus L. (Rosaceae) from eastern England. Four new species of, 97-104, L. (Rosaceae) with transmarine ranges. Five new species of, 83-96, L. (Rosaceae). Typification of some Barton & Riddelsdell names in, 181, 124, 197, 198, 270, 429, 435, 437, 440; sect. Corylifolii 102; ser. Anisacanthi 87, 101; ser. Hystrix 94; ser. Micantes 100; ser. Radula 87, 91, 430; ser. Rhamnifolii 89; ser. Sylvatici 84, 97; ser. Vestiti 94; adornatiformis 429, 430; althaefolius 97; anglobelgicus D. E. Allen & H. Vannerom, sp. nov. 85, 87, 88 (map), 95; babingtonianus 97; bakerianus 181; ‘Bedford Giant’ 104; campaniensis Winkel ex Beek (Rosaceae) in Britain 429-430; cariensis 89; carpinifolius 85; celticus 87; chamaemorus 119; cromerensis A. L. Bull, sp. nov. 101, 101 (map), 102; davisii D. E. Allen, sp. nov. 87, 89, 90 (map), 95; diestemius 87; drymophilus 429; dumetorum var. raduliformis 104; ferox 97; fruticosus 119, 181, 270; furnarius 181; fuscoater 94; fuscus 87; gariannensis A. L. Bull, sp. nov. 97, 99 (map); geniculatus 87; granulatus 429; hastiformis 93; hesperius 84; hindii A. L. Bull, sp. nov. 102, 97, 103 (map), 104; idaeus 119; incurvatus 89, var. rotundifolius 89; insularis 89; iricus 94; koehleri 87; lejeuni var. bracteatus 87; lettii 85; maassti 99; muelleri 94; nemoralis 89; newbridgensis 181; pallidus 94, var. leptopetalus 430; pistoris 181; platyacanthus 85; prolongatus 94; rhombifolius 89; rotundifolius 89, 430; scabripes 94; schlechtendalii 98; sciocharis 85; sempernitens D. E. Allen & L. J. Margetts, sp. nov. 89, 91, 92 (map), 95; silurum 85; spinulifer 87; spinuliferus 87; sprengelii 429; strictispinus 94; tuberculatus 97, 103, 104; ulmifolius 99; venetorum D. E. Allen, sp. nov. 92, 94, 95 (map); villicaulis 89, var. insularis 89; villosior A. L. Bull, sp. nov. 100, 97, 99 (map); waddellii D. E. Allen, sp. nov. 83, 86 (map), 95 Rumex 38, 271, 413, 414, 448; subgen. Lapathum 448; acetosella 44, subsp. acetosella 45; x akeroydii Rumsey, hybr. nov. 414, — a new Dock hybrid 413-416, 415 illus.); conglomeratus 36, 413; conglomeratus x maritimus 414; conglomeratus x palustris 413; crispus 34, 36, subsp. littoreus 34, 36; crispus x maritimus 414; cristatus 413, 414, 416 (map); cristatus x palustris 414; x fallacinus 414; x knafii 414;.x lousleyii INDEX TO WATSONIA VOLUME 22 414; maritimus 413; obovatus 413; obtusifolius x cristatus 414; palustris 400, 413, 414, 416 (map); palustris x patientia 414; patientia 414, subsp. patientia 413; x peisonis 414; pseudoalpinus 281; rupestris Le Gall (Polygonaceae) in England and Wales, and threats to its survival and genetic diversity. The current status of, 33- 39, 35 (map); x wirtgenii 413 Rumsey, F. J. — Rumex x akeroydii — a new Dock hybrid 413-416 Rumsey, F. J. -— Rev. of Welsh ferns, clubmosses, quillworts and horsetails. 7th ed. (by G. Hutchinson & B. A. Thomas) M7 Rumsey, F. J., Jermy, A. C. & Sheffield, E. — The independent gametophytic stage of Trichomanes speciosum Willd. (Hymenophyllaceae), the Killarney Fern and its distribution in the British Isles 1-19 Ruppia cirrhosa 24; maritima 24 Sagina nivalis 109 Sagittaria latifolia 119; sagittifolia 119 Salicornia 26, 283; dolichostachya europaea 26; fragilis 22, 26 Salix 271, 435, 448; caprea 113; cinerea subsp. oleifolia 113; myrsinifolia 197; phylicifolia 197; x reichardtii 113; repens 218, 219, 300, 428 Salvia pratensis L. (Lamiaceae), Meadow Clary, Conservation of Britain’s biodiversity:, 405-411, 407 (map); verbenaca 142, 406 Samolus valerandi 119 Sanguisorba minor 182; officinalis 141 Saxifraga 271; cernua 109; cespitosa 109, 118; hirsuta 80; hypnoides 437; nivalis 109, 118; oppositifolia 109, 110, 438; x polita 80 26; Scandix pecten-veneris 27, 255 Scheuchzeria palustris 228 Schoenoplectus lacustris 30; tabernaemontani Schoenus ferrugineus 228; nigricans 115, 228 Scilla peruviana 142; verna 182, 438 Scirpus 209; cespitosus 209, 210, 230, var. callosus 209, 230, subsp. cespitosus 209, 230, var. delicatulus 209, subsp. germanicus 209, 230, B nemorosus 210; germanicus 230 Scleranthus annuus 257; polycarpos 257 Scorzonera humilis 300 Sedum acre 44 Selaginella selaginoides 115, 218, 439 INDEX TO WATSONIA VOLUME 22 Sell, P. D. & Murrell, G. — Flora of Great Britain and _ TIreland. Volume _ 5. Butomaceae—Orchidaceae (Bk Rev.) 122- 23 Senecio jacobaea 113, 182, 257; paludosus 289; vulgaris 182 Serapias lingua 123; parviflora 123 Serratula tinctoria 141 Sheffield, E., with F. J. Rumsey & A. C. Jermy — The independent gametophytic stage of Trichomanes speciosum Willd. (Hymenophyllaceae), the Killarney Fern and its distribution in the British Isles 1-19 Shteir, A. B. — Cultivating women, cultivating science: Flora’s daughters and botany in England, 1760-1860 (Bk Rev.) 200-201 Sibthorpia europaea 437 Silene acaulis 22, 109, 110; conica 46; otites 45; uniflora 44 Sium latifolium 119 Slack, Alfred A. P., (1913-1998) (Obit.) 294— 295 Sorbus L. (Rosaceae). Morphometric variation in Irish, 153-161, 178, 270, 441; anglica 153-155; aria 153, 154, 156-161; aucuparia 153; devoniensis 153-156, 160; domestica 299, 300; hibernica 153, 154, 156-161; intermedia 153; rupicola 153- 55) Spalding, A. (ed.) — Red data book for Cornwall and the Isles of Scilly (Bk Rev.) 289-290 Sparganium 301; angustifolium 30, 64, 189; emersum 170, 335; erectum 334, 336, 435, subsp. microcarpum 435; natans 30, 189 Sparks, T. H., with D. R. Barratt, K. J. Walker, R. F. Pywell & J. O. Mountford — Variation in the responses of infraspecific variants of wet grassland species to manipulated water levels 317-328 Spartina anglica 22 Spergularia marina 191 Sphagnum 187, 210, 211, 216, 218, 219, 221, 226-228, 427; balticum 219; compactum 219; majus 219; molle 219; riparium 219; strictum 219; tenellum 218, 219 Spirodela polyrhiza 170 Squamarina cartilaginea 115 Stace, C. — New Flora of the British Isles. 2nd ed. (Bk Rev.) 123-124 Stace, C. A. — Rev. of Flora of North America north of Mexico. Volume’ 3: Magnoliophyta: Magnoliidae and Hamamelidae (ed. by Flora of North America Editorial Committee) 195-196 463 Stace, C. A. — Rev. of Plant crib 1998 (by T. C. G. Rich & A. C. Jermy) 440-441 Stace, C. A., with P. Macpherson — x Agropogon robinsonii (Druce) Melderis & D. C. McClint. 113-114 Stachys officinalis 300 Stellaria pallida 299 Stewart, A., with D. A. Pearman, C. D. Preston & D. B. Rob —- The use of B.S.B.I. Monitoring Scheme data to _ predict nationally scarce species in Britain 21—28 Stewart, Olga Margaret, (1920-1998) (Obit.) 445-447 Stirling, A. McG. — Obit. of Alfred A. P. Slack (1913-1998) 294-295 Suaeda vera 142 Subularia aquatica 30, 64 Succisa pratensis 141, 427 Swan, G. A. — Identification, distribution and a new nothosubspecies of Trichophorum cespitosum (L.) Hartman (Cyperaceae) in the British Isles and N. W. Europe 209-233 Swan, G. A., with P. M. Hollingsworth — Genetic differentiation and hybridisation among subspecies of Deergrass (Trichophorum cespitosum (L.) Hartman) in Northumberland 235-242 Synnott, D. — Rev. of Flora of County Dublin (ed. by D. Doogue, D. Nash, J. Parnell, S. Reynolds & P. Wyse Jackson) 435 Tabbush, P. — Genetic conservation of Black Poplar (Populus nigra L.) 173-179 Tamarix gallica 283 Taraxacum 124, 127, 128, 197, 198, 270, 435- 437, 440; faeroensis 218; officinale 270, 317; palustre 127, 289 Tarpey, T. — Rev. of Natives and aliens — the wild flowers and trees of the Langdon Hills (by R. L. Cole) 434 Taylor, G., with J. E. Dandy — Studies of British Potamogetons. — XIX. x Potamogeton sudermanicus in Britain 165—166 Teesdalia nudicaulis 46, 257 Tetraphis pellucida 14 Tetrodontium brownianum 14 Teucrium scordium 119; scorodonia 45 Thelypteris palustris 300 Thesium humifusum 142 Thlaspi caerulescens 437; perfoliatum 254 Thomas, B. A., with G. Hutchinson — Welsh ferns, clubmosses, quillworts and horsetails. 7th ed. (Bk Rev.) 117 464 Thymus polytrichus 44, 115, 300; serpyllum 45 Tolypella glomerata 283 Tortula 44 Trichomanes 2, 6; sect. Lacosteopsis 6; sect. Vandenboschia 6; boschianum 2; intricatum 2; petersii 2; radicans 117; speciosum Willd. (Hymenophyllaceae), the Killarney Fern and its distribution in the British Isles, The independent gametophytic stage of, 1-19, 4 (map), 5 (illus.), 7 Gillus.), 8 (map), 117 Trichophorum 209, 219, 220, 228, 236, 240, 441; alpinum 213; austriacum 209, 230; cespitosum (L.) Hartman (Cyperaceae) in the British Isles and N. W. Europe. Identification, distribution and a new nothosubspecies of, 209-233, 230 (key), (L.) Hartman) in Northumberland. Genetic differentiation and hybridisation among subspecies of Deergrass (, 235-242, subsp. austriacum 230, subsp. cespitosum 209- 213, 214 (illus.), 215-220, 223 (map), 224, 227-231, 235-241, subsp. cespitosum x subsp. germanicum 230, 235, nothosubsp. foersteri G. A. Swan, nothosubsp. nov. 230; 2215222, 224 (map),225 nap), 229, 235-241, subsp. germanicum 209-213, 214 (illus.), 215-220, 223, 225 (map), 226 (map), 227-231, 235-241, subsp. hercynicum 229; germanicum 209, 210, 230) Trichostomum crispulum 115 Trifolium 271; fragiferum 435; hybridum 113; micranthim 141; dccidentale D. E. Coombe (Fabaceae) in Anglesey (v.c. 52) 182-184, 183 (map); ornithopodioides 141, 299, 300; repens 182-184; scabrum 141, 142, 299, 300; squamosum 142; striatum 141, 257, 299; subterraneum 141 Triglochin palustre 189, 218 Trist, P. J. O. — The distribution and status of Corynephorus canescens (L.) P. Beauv. (Poaceae) in Britain and the Channel Islands with particular reference to its conservation 41-47 Tuberaria guttata 257 Turner Ettlinger, D. M. — A new variety of ne apifera Hudson (Orchidaceae) 105— Turner Ettlinger, D. M. — Notes on the British and Irish Orchids (Bk Rev.) 201—202 Tussilago farfara 113 Typha angustifolia 30 INDEX TO WATSONIA VOLUME 22 Ulex 145, 149-151, 365-368, 374, 375; sect. Neowilkommia 375; cantabricus 144, 149- 151; europaeus 151, 256, 366, 375, subsp. europaeus 366, subsp. lactobractaeus 366; europaeus x gallii 375; gallii Planch. in Dorset. Chromosome numbers and flower sizes of Ulex minor Roth. and, 143-152, 144 (map), 148 illus.), 300, Planch.:: morphometrics and chromosome counts. Taxonomic separation of Ulex minor Roth. and, 365-376; gallii x europaeus 144, 151; gallii x minor 144, 145, 147, 151, 366, 374; minor Roth. and Ulex gallii Planch. in Dorset. Chromosome numbers and flower sizes of, 143-152, 144 (map), 148 (illus.), Roth. and U. gallii Planch.: morphometrics and chromosome counts, Taxonomic separation of, 365-376, subsp. breoganii 144, 150, 151, subsp. gallii 144, subsp. minor 144; minor x europaeus 144 Ulmus 198 Urtica. 275, 271. (key); dioica 295-277. galeopsifolia Wierzb. ex Opiz (Urticaceae) confirmed for Britain by its chromosome number 275-278; galeopsifolia x dioica 207 Utricularia 26; australis 22, 26; intermedia 26, 189, 228, 382; minor 227; ochroleuca 22, 26; vulgaris 26, 64, 437 Vaccinium myrtillus 347; oxycoccos 211, 218, 219, 221, 222; uliginosum 22; vitis-idaea 347 Valeriana dioica 300 Valerianella eriocarpa 142 Vaughan, J. G. & Geissler, C. A. — The new Oxford book of food plants (Bk Rev.) 202 Verbascum arcturos 121 Verdcourt, B. — Obit. of Edgar W. B. H. Milne— Redhead M.B.E., I.S.0., T.D. (1906-1996) 128-137 Veronica 271; anagallis-aquatica 30, 335; hederifolia 124 Vicia parviflora 141 Vickery, R. — A dictionary of plant-lore (Bk Rev.) 124-125 Victoria 200 Viola kitaibeliana 45; lactea 300; palustris 218; persicifolia 289; riviniana 300 Vulpia bromoides 44, 257; fasciculata 142; myuros 257 INDEX TO WATSONIA VOLUME 22 Wahlenbergia hederacea 437 Walker, K. J., with D. R. Barratt, R. F. Pywell, J. O. Mountford & T. H. Sparks — Variation in the responses of infraspecific variants of wet grassland species to manipulated water levels 317-328 Walters, S. M. — Rev. of Cultivating women, cultivating science: Flora’s daughters and botany in England, 1760-1860 (by A. B. Shteir) 200-201 Webb, David Allardice, (1912-1994): Bibliography of published writings — additions (Obit.) 206—207 Welch, D. & Innes, M. — _ Southward recolonisation by Mertensia maritima (L.) Gray on the coast of north-eastern Scotland 424-426 Welch, D. & Welch, M. J. — Colonisation by Cochlearia_ officinalis L. (Brassicaceae) and other halophytes on the Aberdeen- Montrose main road in north-east Scotland 190-193 Welch, M. J., with D. Welch — Colonisation by Cochlearia officinalis L. (Brassicaceae) and other halophytes on the Aberdeen- Montrose main road in north-east Scotland 190-193 Wells, T. C. E. — Rev. of Rothschild’s reserves: time and fragile nature (by M. Rothschild & P. Marren) 198—200 Wheeler, B. R. & Hutchings, M. J. — The history and distribution of Phyteuma spicatum L. (Campanulaceae) in Britain 387—395 Wilkinson, D. M. — Correlations between higher-taxon richness and species richness in the British Isles flora 269-273 Wilkinson, D. M. — Relationship between species richness and rarity in Welsh aquatic floras 29-32 Wolffia arrhiza 437 Woodell, S. J., with J. Killick & R. Perry — The Flora of Oxfordshire (Bk Rev.) 437-438 Woodman, J., with G. Barter — Field excursions held in conjunction with the A.G.M. 1998 (Fld Mtg Rpt) 298-300 Woods, R. G. — Rev. of New Flora of the British Isles. 2nd ed. (by C. A. Stace) 123-124 Woodsia 118 Wright, J. A. & Lusby, P. S. — The past and present status of Moneses uniflora (L.) Gray (Pyrolaceae) in Scotland 343-352 Wright, J., with P. Lusby & S. J. Clarke — Scottish wild plants (Bk Rev.) 438-439 465 Wyse Jackson, M. B. & Wyse Jackson, P. N. — David Allardice Webb (1912-1994): Bibliography of published writings — additions 206—207 Wyse Jackson, P., with D. Doogue, D. Nash, J. Parnell & S. Reynolds (eds.) — Flora of Dublin (Bk Rev.) 435 Wyse Jackson, P. N., with M. B. Wyse Jackson — David Allardice Webb (1912- 1994): Bibliography of published writings — additions 206—207 Yeo, P., with M. Proctor & A. Lack — The natural history of pollination (Bk Rev.) 439-440 Zannichellia palustris 334, 336; pedunculata 283 Zelkova cretica 120 Zostera angustifolia 122; marina 122 : sy - y is : < , 1 7 f 1 P J : i ‘ E + i : 4 j - x \ — a \ a CONTENTS RUMSEY, F. J., JERMY, A. C. & SHEFFIELD, E. The independent gametophytic stage of Trichomanes speciosum Willd. Se the Killarney Fern and its distribution in the British Isles PEARMAN, D. A., PRESTON, C. D., Roy, D. B. & STEWART, A. The use of B.S.B.I. Monitoring Scheme data to predict nationally scarce species in Britain wae eget ih Melee) Sheet “Mee. tee: ade | “ce WILKINSON, D. M. peseenatts between species richness and rarity in Welsh aquatic floras - Bye. eee oe oT ee DANIELS, R. E., MCDONNELL, E. J. & RAYBOULD, A. F. The current status of Rumex rupestris Le Gall (Polygonaceae) in England and Wales, and threats to its survival and genetic diversity Ee TRIST, P. J. O. The distribution and status of Corynephorus canescens L) P P. Beauv. (Poaceae) in Britain and the Channel Islands with oe reference to its conservation KITCHENER, G. D. & MCKEAN, D. R. Hybrids of > Epilobium brunnescens (Cockayne) Raven & eee (Onagraceae) and their occurrence in the British Isles ons PRESTON, C. D., BAILEY, J. P. & HOLLINGSWORTH, P. M. A reassessment of the hybrid Potamogeton x _ gessnacensis G. Fisch. (P. natans x P. polygonifolius, Potamogetonaceae) in Britain PRESTON, C. D., HOLLINGSWORTH, P. M. & GORNALL, R. J. Potamogeton pectinatus L. x P. vaginatus Turcz. (P. x bottnicus Hagstr.), a newly identified hybrid in the British Isles ALLEN, D. E. Five new species of Rubus L. (Rosaceae) with transmarine ranges BULL, A. L. Four new species of Rubus L. (Rosaceae) from eastern England TURNER ETTLINGER, D. M. A new variety of ee apifera Hudson (Orchidaceae) - ae eed Mei NOTES Corner, R. W. M. Northern limits attained by native British plants in North Peary, Greenland Gulliver, R. L. Population sizes of Gentianella uliginosa (Willd.) Boerner, Dune Gentian, on Colonsay (v.c. 102) in 1996 Macpherson, P. & Stace, C. A. x te robinsonii ee Melderis & D. C. McClint. Rose, F. Gentianella Meee (Willd) Boerner Coa found in Colonsay (v.c. 102), new to Scotland BOOK REVIEWS OBITUARIES REPORT Be Seals ee ne eee es BULLOCK, J. M., CONNOR, J., CARRINGTON, S. & EDWARDS, R. J. Chromosome numbers and flower sizes of Ulex minor Roth. and Ulex a Planch. in Dorset PARNELL, J. & NEEDHAM, M. ieienuee variation in Irish Sorbus L. (Rosaceae) PAGES 21-28 29-32 33-39 41-47 49-60 61-68 69-82 83-96 97-104 105-107 109-110 111-113 113-114 114-116 117-125 127-138 139-142 143-152 153-161 INDEX TO WATSONIA VOLUME 22 PRESTON, C. D. & PEARMAN, D. A. J. E. Dandy & G. Taylor’s unpublished study of Potamogeton x sudermanicus Hagstr. In Britain, with an account of the current distribution of the hybrid TR Ale hi TABBUSH, P. Genetic conservation of Black Poplar (Populus nigra) NOTES Allen, D. E. Typification of some Barton & Riddelsdell names in Rubus L. (Rosaceae) ag be me ie fs oe ase ssa lusts. Blackstock, T. H. & Roberts, R. H. Trifolium occidentale D. E. Coombe (Fabaceae) in Anglesey (v.c. 52) he C. D._ Lectotypification of eal Seah en Bab. (Potamogetonaceae) Preston, Preston, C. D. & Pearman, D. Aquatic plants at high altitudes in the Breadalbane Mountains (v.c. 88), Scotland Welch, D. & Welch, M. J. Colonisation by Cochlearia officinalis ils (Brassicaceae) and other halophytes on the Aberdeen-Montrose main road in north-east Scotland BOOK REVIEWS OBITUARIES SWAN, G. A. Identification, distribution and a new nothosubspecies of Trichophorum ge eae (L.) Hartman eee a in the British Isles and N. W. Europe HOLLINGSWORTH, P. M. & SWAN, G. A. Genetic differentiation and hybridisation among subspecies of reas ferry toons cespitosum (L.) Hartman) in Northumberland AKSOY, A., HALE, W. H. G. & DIXON, J. M. Towards a simplified taxonomy of Capsella bursa-pastorvis (L.) Medik. (Brassicaceae) ae RICH, T. C. G. Conservation of Britain’s igaaeinc aes lutescens Jordan (Asteraceae), Red-tipped cudweed DEARNLEY, T. C. & DUCKETT, J. G. Juniper in the Lake District National Park. A review of condition and regeneration WILKINSON, D. M. Correlations between cae -taxon richness and species richness in the British Isles flora MCALLISTER, H. A. Urtica galeopsifolia Wierzb. ex Opi Uiieaese confirmed for Britain by its chromosome number Sg OEP Sani MCALLISTER, H. A. Lysimachia punctata L. and L. verticillaris ee (Primulaceae) naturalised in the British Isles Sls Se; he dak NOTES Lansdown, R. V. A terrestrial form of Callitriche truncata Guss. subsp. occidentalis (Rouy) Braun-Blanquet (Callitrichaceae) ; eas BOOK REVIEWS OBITUARIES REPORT : ae rer oe ie ae eS wae sae fis Lae KAY, Q. O. N., JOHN, R. F. & JONES, R. A. Biology, genetic variation and conservation of Luronium natans (L.) Raf. in Britain and Ireland V1 163-172 173-179 181 182-184 184-186 187-190 190-193 195-202 203-207 209-233 235-242 243-250 251-260 261-267 269-273 275-278 279-281 283-286 287-291 293-295 297-300 301-315 INDEX TO WATSONIA VOLUME 22 BARRATT, D. R., WALKER, K. J., PYWELL, R. F., MOUNTFORD, J. O. & SPARKS, T. H. Variation in the responses of Leaman variants of wet grassland species to manipulated water levels PRESTON, C. D., HOLLINGSWORTH, P. M. & GORNALL, R. J. The distribution and habitat of Potamogeton x suecicus K. Richt. (P. fi ee Pers. x P. pectinatus L.) in the British Isles WRIGHT, J. A. & LuSBY, P. S. The past and present status of Moneses ne (L.) Gray (Pyrolaceae) in Scotland RICH, T. C. G. & LEwiIs, J. Use of herbarium material for mapping the distribution of Erophila (Brassicaceae) taxa sensu Filfilan & se vacaane in Britain and Ireland WHEELER, B. A. R. & HUTCHINGS, M. J. The eae and distribution of Phyteuma spicatum L. (Campanulaceae) in Britain RICH, T. C. G. Conservation of Britain’s biodiversity: Cyperus ao L. (Cyperaceae), Brown Galingale 2 i ee RICH, T. C. G., LAMBRICK, C. R. & MCNAB, C. Conservation of Britain’s biodiversity: Salvia pratensis L. (Lamiaceae), Meadow Clary RUMSEY, F. J. Rumex x akeroydii — a new Dock hybrid MCKEAN, D. R. A new Epilobium hybrid from Scotland, E. egress A. Cunn. x E. montanum L. ae aol We oaks. sBaeee ' ate NOTES Cook, P. J. Elytrigia repens (L.) Desv. ex Nevski subsp. arenosa ae A. Love (Poaceae) in south-east Yorkshire (v.c. 61) > ; Rich, T. C. G. The potential for seed dispersal by sea water in Cee ae (O. E. Schulz) Stace and C. monensis (L.) W. Greuter & Burdet shag monensis ar eer eS ee 2 Welch, D. & Innes, M. Southward recolonisation by Mertensia maritima L) Gray on the coast of north-eastern Scotland — Edgington, M. J. Erica ciliaris L. (Ericaceae) discovered in the Blackdown Hills, on the Somerset-Devon border (v.c. 3) Holyoak, D. T. Gentianella aera (Willd.) Borner rediscovered in north Devon (Gentianaceae) Allen, D. E. Rubus campaniensis Winkel ex Beek eee in Britain Porley, R. D. Separation of Carex vulpina L. and C. otrubae es (Coperacete using transverse leaf sections ee BOOK REVIEWS OBITUARIES Vil 317-328 329-342 343-352 377-385 387-395 397-403 405-411 413-416 417-419 421 422-423 424426 426-428 428-429 429-430 431-432 433-441 443-449 SMITHSONIAN INSTITUTION LIBRARIES IMT TIOA 3 9088 01759 1025