TO THE

CACTACEA OF MEXICAN BOUNDARY.

Frontispiece, Cereus giganteus.

1. Mamillaria micromeris.
2. M. micromeris and var. Greggil.
3. M. lasiacantha.
4. M. lasiacantha, var. denudata.
5. M. pusilla, var. Texana.
6. M. Grahami and M. barbata.
7. M. phellosperma.
8. M. Wrightii and M. Goodridgii.
9. M. meiacantha, M. Heyderi, M. gummifera,
10. M. Echinus.
11. M. pectinata.
12. M. tuberculosa and M. dasyacantha.
13. M. radiosa, var. Neo-Mexicana.
14, 15. M. macromeris.
16. M. fissurata.
17. Echinocactus Scheerii.
18, 19. E. brevihamatus.
20. E. setispinus.
21-24. E. ——

E. cylindraceus.

E. horizonthalonius.

E. horizonthalonius and E. Parryi.

E. Texensis and E. Sandillon.

. E. intertextus.

E. intertextus, var. dasyacanthus and E. ungui-
spinus.

eee

—

36. Cereus viridiflorus.

37, 38. C. chloranthus.

39, 40. C. dasyacanthus.

41. C. dasyacanthus and C. Reetteri.

42. C. ctenoides.

43, 44. C. ceespitosus.

45. C. longisetus.

46, 47. C. stramineus.

48. C. stramineus and C, enneacanthus.

49. C. enneacanthus.

50. C. dubius.

51=53. C. Fendleri.

54, 55. C. polyacanthus.

56. C. paucispinus.

57. C, Engelmanni.

58. C. Berlandieri.

59. C. procumbens. ©. *

60. C. Emoryi and C. variabilis,

61, 62. C. giganteus.

63-65. C. Greggii.

66. Opuntia stenopetala.

67. O. Strigil. :

68. O. filipendula.

69. O. macrorhiza.

70,71. -G. eee

72. O, Graham

73.0. schegik: O. bulbispina, and O. imbricata.

74. Seeds of species of Mamillaria, Echinocactus,
and Cereus.

75. Seeds of Opuntia.

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SEEDS OF MAMILLARIAE, ECHINOCACT! AND CEREI

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SEEDS OF OPUNTIAE

PLATES

TO THE

CACTACEA OF WHIPPLE’S EXPEDITION.

1, Echinocactus Whipplei.
2. E. polyancistrus and E. LeContei.
3. E. Wislizeni, E. Emoryi, E. polycephalus.
4. Cereus phoniceus, C. conoideus, C. triglochi-
diatus, C. Bigelovii, and var. Zuniensis.
5. C. hexedrus, C. gonacanthus, C. Engel-
manni.
6. Opuntia chlorotica and O. procumbens.
7. O. occidentalis and O, angustata.
8. O. Engelmanni and 0. tortispina.
9. O. Camanchica and O. Mohavensis.
10. O. vulgaris and O. Rafinesquii.
11. O. Rafinesquii.

12. O. cymochila, O. stenochila, O. fusiformis, O.
brachyarthra.

13. O. basilaris, O. spheerocarpa, O. erinacea.

14. Q. Missouriensis.

15. O. Missouriensis and O. hystricina.

16. O. Davisii.

17. O. Whipplei and O. arborescens.

18. 0. acanthocarpa, O. arborescens, O. echinocarpa.

19. O. Bigelovii.

20. O. vaginata and O. frutescens.

21. O. tessellata.

22. O. Parryi, O. clavata, and seeds of Opuntia.

23, 24. Seeds of Opuntia.

USPRREX &SURVEY'S.35%PARALLEL. CACTACEA. Plate 1

ECHINOCACTUS WHIPPLEI E &B-

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13. CEREUS PHCENICEUS,E. 4-5.CEREUS CONOIDEUS E®&B
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USPRREX & SURVEYS, 35¢PARALLEL 2 es ___CACTACEA, Plate Vil

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4. OPUNTIA ENCELMANNI var. CYCLODES E&B. 2~3. OPUNTIA TORTISPINA. E.6B

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45 OPUNTIA CAMANCHICA E®B. 6°8 OPUNTIA MOHAVENSIS. E&B

US.PRREX. & SURVEYS 35thPAR ALLET ACTACER, Plate X%

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| ; 1

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1-3, OPUNTIA CYMOCHILA,E#B. 4*6 OPUNTIA STENOCHILA, E®B. 7-8, OPUNTIA FUSIFORMIS , E &B.
s 9, OPUNTIA BRACHYARTHRA. E&B.

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USPRREX &SURVEYS, 35*PARALLEL | CACTACES, Plate XIV.

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OPUNTIA MISSOURIENSIS, DC.
4-3, var. RUFISPINA. 4. var PLATYCARPA. 5-7. var. MICROSPERMA. 8-10. var ALBISPINA.

U.S.PRREX &SURVEYS, 35*PARALLEL CACTACEA,, Plate XV

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5-6 OPUNTIA HYSTRICINA,E &B.

CACTACEA,Plate XVI

EL

USPRREX.&SURVEYS 35PARALL

USPRREX &SURVEYS, 35*PARALLEL CACTACEAS, Plate XVI.

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CACTACEA,. Plate. XIX

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PLATES

TO THE

CACTACEZ OF SIMPSON’S EXPEDITION.

1, 2. Echinocactus Simpsoni. 3. Opuntia pulchella.

Expls. of Capt. J. H Simpson's 1858-59. | , Plate I

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ECHINOCACTUS SIMPSONI ENGELM.

Expls. of Capt. J.H.Simpsons 1858-59
Plate I

ECHINOCACTUS SIMPSONI ENGELM.

Plate Ill.

Expls. of Capt. J.H.Simpson’s,1858-59.

OPUNTIA PULCHELLA,. ENCELM.