Phytoneuron

/ species from the Andes of Pasco,

STUDIES OF NEOTROPICAL COMPOSITAE-V.

MUNNOZIA ORTIZIAE (LIABEAE), A NEW SPECIES FROM

THE ANDES OF PASCO, PERU

John F. Pruski

Missouri Botanical Garden

P.O. Box 299
St. Louis, Mssouri 63 166

ABSTRACT

A new species, Munnozia ortiziae Pruski (Compositae: Liabeae: Munnoziinae), is described
from the Andes of Pasco, Peru. It is most similiar to M. oxyphylla, also of Peru, in its pinnately

veined, lanceolate to elliptic-lanceolate leaves and moderately large capituia in loose, open cymose

capitulescences.

KEY WORDS: Andes, Asteraceae, Compositae, Liabeae, Unburn, Munnozia, Munnoziinae, Pasco,

Peru.

Munnozia Ruiz & Pav. (Compositae: Liabeae: Munnoziinae) is an Andean-centered genus of
more than 40 species (Robinson 1978, 1983). It was resurrected from synonymy of Liabum Adans.
by Robinson and Brettell (1974) and differs from Liabum by black (vs. pale) anther thecae. A new
species, Munnozia ortiziae Pruski, from the Andes of Pasco, Peru, is described herein. The new
species appears most similar to M, oxyphylla (Cuatrec.) H. Rob., which is known from Huanuco and
Pasco, Peru.

MUNNOZIA ORTIZIAE Pruski, sp. nov. TYPE: PERU. Pasco. Prov. Oxapampa. Dist. Oxapampa:
La Suiza Nueva, open forest with many tree ferns, 10°38' S, 75°27 W, 2240 m, 21 Jun 2003,

H. van cler Werff, R. Vasquez, B. Gray, R. Rojas, R. Ortiz, &N. Davila 1 7600 (holotype: MO;
isotypes: AMAZ, F, HOXA, USM). Figures 1-5.

Plantae herbaceae perennes vel fruticosae usque ca. 2(-4) m altae; folia opposita petiolata, lamina
lanceolata vel elliptico-lanceolata 5-1 1 cm longa 1— 4(— 6) cm lam chartacea pinnatim venosa supra virida saepe
glabra subtus albo-grisea tomentoso-sericea; capitulescentia cymosa ; pedunculi 4-12 cm longi; capituia radiata;
involucrum campanulatum vel hemisphaericum; phyllaria subaequalia vel obgradata ca. 3-seriata 9-14 mm
longa albo-grisea tomentoso-sericea; flosculi radii 24-36, corollis 24-27.5 mm longis; flosculi disci 40-50+ :
coroiiis 7-8 mm longis infundibuliformis; anthera niger; cypselae ca. 1 mm longae strigillosae; setae pappo ca
6 mm longae.

Perennial herbs to shrubs to ca. 2(-4) m tall, branching opposite (trichotomous). Stems
ascending to scandent, subterete or angled, loosely arachnoid-tomentose to sometimes subglabrous
proximally. Leaves simple, opposite, petiolate; petiole 1-1.5 cm long, narrow, unwinged, slightly
dilated and subconnate at base; blade lanceolate to elliptic-lanceolate, 5-11 cm long, l^l(-6) cm
wide, chartaceous, venation pinnate, secondary veins 7-10 per side, surfaces discolorous, adaxial
surface green, glabrous or sometimes lingering arachnoid-tomentose, abaxial surface white-gray,
tomentose-sericeous, triciiomes fused, midrib and secondary veins visible but tertiary reticulation
obscured by tomentum, base acute to broadly obtuse, margins entire to less commonly few crenulate-
serrulate, apex acute to acuminate. Capitulescence few- to several-capitulate, open, cymose;
peduncles 4-12 cm long, tomentose-sericeous or lingering arachnoid-tomentose. Capituia radiate,
many-flowered; involucre campanulate to hemispherical; phyllaries subequal or obgradate, ca. 3-

Figure 1. Munnozia ortiziae Pruski. Photograph of a paratype {van der Werff et at. 23417, MO)
showing the opposite discolorous leaves and subequal to obgradate tomentose-sericeous phyllaries.

seriate, lanceolate to elliptic-lanceolate, 9-14 mm long, white-gray, tomentose-sericeous with fused
persistent (sometimes thinning but never subglabrate) trichomes or inner phyllaries sometimes
arachnoid-tomentose; receptacle subpaleate, pseudopaleae ca. 2 mm long, lacerate-echinate. Ray
florets 24-36. pistillate; corolla 24-27.5 mm, pale yellow, tube 3-3.5 mni long, limb lanceolate, 21-
24 mm long, ca. 2 mm wide, 4-nerved; style well-exserted, subglabrous, branches ascending, linear,
ca. 1.5 mm long, terete, stigmatic surfaces continuous. Disk florets bisexual, 40-50+; corolla
funnelform, 7-8 mm long, 5-lobed, pale yellow, tube 3-3.5 mm long, narrow, usually shorter than
limb, sparsely setose, limb 4-4.5 mm long, throat only slightly ampliate, 1-1.5 mm long, lobes
lanceolate, ca. 3 mm long, noticeably longer than short throat, sparsely setulose with antrorse
biseriate trichomes apically; anther thecae black, appendage triangular, stramineous; style shaft
setulose distally, branches spreading, shortly elliptical, ca. 0.5 mm long, somewhat flattened,
abaxially sparsely setulose, stigmatic surfaces continuous. Cypselae obconic, ca. 1 mm long, brown,
strigillose; pappus bristles many, subequal, 2-3-seriate, ca. 6 mm long, pale brown, subentire or
proximally scabridulous, reaching only to about midpoint of corolla lobes.

Paratypes. PERU. Pasco. Prov. Oxapampa. Dist. Chontabamba: Carretera Chontabamba
a la Suiza, 2100 m, 11 Nov 2004, Monteagudo et al. 7599 (HOXA, MO, USM + 2 unmounted
duplicates for distribution); Sector La Suiza, 2211 m, 6 Dec 2004, Monteagudo et al. 7876 (AMAZ,
HOXA, MO, USM + 2 unmounted duplicates for distribution); La Suiza Nueva, 2240 m, 21 Jun
2003, van der Werffet al. 17589 (HOXA MO, USM +2 unmounted duplicates for distribution); La
Suiza Nueva, 2210 m, 6 May 2005, van der Werffet al. 19775 (HOXA MO, USM + 2 unmounted
duplicates for distribution); La Suiza Nueva. 2200 m, 17 Oct 2005, Vilca & Rqjas 492 (AMAZ,
HOXA MO, MOL, USM + 2 unmounted duplicates for distribution). Dist. Huancabamba: Parque
Nacional Yanachaga Chemillen, Grapanazu, alrededor de la laguna San Daniel, 2366 m, 6 Sep 2006,
Castillo 346 (AMAZ, HOXA, MO, MOL, USM + 2 unmounted duplicates for distribution); Entre el
Rio cueva blanca y milpo, 2720 m, 18 Sep 2004, Monteagudo et al. 7078 (HOXA, MO, USM);
Sector Milpa, 3000 m, 1 Feb 2005, Monteagudo & Francis 8040 (HOXA MO, USM); Parque
Nacional Yanachaga-Chemillen, cerca a la Cordillera Yanachaga, 3330 m, 24 Apr 2007, Monteagudo
et al. 13801 (HOXA); Lanturachi, sector Santa Barbara, camino a Cueva Blanca, Remanente, 2813
m, IS Oct 2004, Perea et al. 789 (HOXA, MO, USM); Sector Grapanazu, 2400 m, 17 Oct 2003.
Rojas et al. 1929 (HOXA, MO, USM + 1 unmounted duplicate for distribution), same date and
locality, Rojas et al. 1977 (HOXA, MO, USM + 1 unmounted duplicate for distribution); Sector Oso
Playa, Bosque montano (bofedal) sobre suelo arenoso, 2559 m, 13 Oct 2009, Valenzuela et al. 13458
(MO + 2 unmounted duplicates for distribution). Dist. Oxapampa: Parque Nacional Yanachaga
Chemillen, Cercanias del Refugio el Cedro, 2240 m, 27 Nov 2002, Monteagudo et al. 4456 (HOXA
MO, USM); Parque Nacional Yanachaga Chemillen, Cercanias del Refugio el Cedro, 2200-2400 m,
6 Feb 2003, Monteagudo et al. 4491 (HOXA MO, USM); La Suiza, 2200 m, 10 Dec 2002, Vdsquez
et al. 27750 (HOXA, MO, USM + 2 unmounted duplicates for distribution); Parque Nacional
Yanachaga-Chemillen, Sector San Alberto, 2600 m, 14 Mar 2003, Vdsquez et al. 28023 (HOXA.
MO, USM); La Suiza Nueva, 2200 m, 1 May 2003, Vdsquez et al. 28080 (MO); Parque Nacional
Yanachaga-Chemillen, sector Chacos, 2219 m, 21 Jan 2004, Vdsquez et al. 28834 (HOXA MO,
USM). Dist. not given on labels: Palmazu, Cooperative Navarra, 2000 m, 5 Mir 1986, van der Werff
et al. 8373 (MO)'; Laguna San Daniel, 2400 m, 8 Nov 2009, van der Werffet al. 23416 (MO + 1
unmounted duplicate for distribution); Laguna San Daniel. 2400 m. 8 Nov 2009, van der Werff et al,
23417 (MO).

Etymology. This beautiful new species is named for Dra. Rosa Ortiz (MO), co-collector of
the type and a native Peruvian. Rosa Ortiz is a specialist in the taxonomy and phytogeny of
Menispermaceae, so it is both appropriate and a pleasure to dedicate to her this new (ascending to)
scandent species.

Pruski: Munnozia ortiziae from Peru 4

Figure 2. Munnozia ortiziae Pruski. Distal portion of stem showing the discolorous leaves and the
subequal to obgradate, tomentose- sericeous phyllaries (Castillo 346).

Figure 4. Munnozia ortiziae Pruski. Close-up of two capitula (Monteagudo el at. 13801]

Pruski. Biseriate trichomes of disk corollas (van der Werffet al.

Figure 5. A-C. Munnozia
17600).

Distribution and ecology. This apparently locally common species is endemic to Prov.
Oxapampa in Pasco, Peru, where it has been collected in low forests and disturbed areas from 2000-
3330 meters elevation in several districts.

Munnozia ortiziae is most similar to the Peruvian M. oxyphylla of sect. Munnozia — both
species liave pinnately veined, lanceolate to elliptic -lanceolate leaves and moderately large capitula in
loose, open cymose capitul esc ences. Munnozia ortiziae clearly differs from M. oxyphylla by its
subequal or obgradate (vs. gradate), tomentose-sericeous (vs. glabrous to Ungering arachnoid)
phyllaries that are 9-14 (vs. 6-7) mm long, by generally more numerous ray florets, and by
funnelform (vs. campanulate) disk corollas with tube shorter (vs. longer) than limb.

ACKNOWLE DGEMENT S

Rosa Ortiz (MO) and Rodolfo Vasquez (HOXA) are thanked for organizing our trip in 2008
to Pasco, Peru. I would to extend my thanks to Gina Castillo (HOXA) for kindly sending me the field
photographs used here and also for her comments on an earlier draft of the manuscript. Gina Castillo,
Rosa Ortiz, Rigoberto Rivera (HOXA), and Rodolfo Vasquez are thanked for their help in the field,
and I thank Guy Nesom (FN A) for review and editing.

LITERATURE CITED

Robinson, H. 1978. 190(2). Compositae-Liabeae. Pp. 1-62 in G. Harling andB. Spare (eds.), Flora

of Ecuador No. 8.
Robinson, H. 1983. A generic review of the tribe Liabeae (Asteraceae). Smithsonian Contr. Bot. 54:

1-69.
Robinson, H. andR.D. Brettell. 1974. Studies in the Liabeae (Astei

the genera. Phytologia 28: 43-63.

le). II. Preliminary survey of