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WILMATTKA 



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195 



Species. 



This very peculiar plant we have not been able to refer definitely to any of the above 

 le It suggests m a way the other Hylocereus, which Dr. Ro... Ln r.uZ;Z^T^ ^r^" 



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New York 



It, however, has 



^ Cbreus radicans De CandoUe, Prodr. 3 : 468. 1828. 



DESCRIPTION 



This 



It is prob- 



amy eitner a ^.elemcereus or a Hylocereus. It was described as prostrate, light green in 

 color, 3 or 4-angled, with rigid, slender, brown spines, of which 6 to o a^e radials and i 

 IS central. De CandoUe refers it to Tropical America; Pfeiffer (Enum' cLt Ix^lo 



reptans Salm 



America 



America and the Antilles. Schumann 



1828) is an unpublished name 



mentioned under C. radicans, while Cereus reptans Willdenow 



pentago 



Cereus horrens Lemaire, Hort. Univ. 6: 60. 1845. 



Climbing and rooting; ribs 3, prominent, strongly tub( 

 white down ; spines 5 to 7, whitish, variable, stout, very long. 



_This species seems to have been lost. Its flowers ; 

 origin. It is probably a //v/oc^r^wj. 



bearing 



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unknown 



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2. WILMATTEA 



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A climbing cactus, epiphytic and rooting along the sides of the joints, slender, with few short spines • 

 ^rs solitary at the areoles (in one case 2 flowers seen), small for the tribe, nocturnal, with a narrow 



very short tube; ovary 



subtending a small areole filled with felt and occasionally with i bristle or more, perhaps sometimes 

 naked ; filaments and style short. , ,.. 



y - 





Mrs. T. D. A: Cockerell (Wilmatte 



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Guatemala and Honduras. The genus is named 



•-. *" " i «^; 



3veries of rare plants and animals in Central America 



In habit this plant resembles a slender-stemmed species of Hylocereut 



ovary bear similar scales and this led us at one time to consider it as 



genus. The 



much smaller vy^ith scarcely any tube and bearing 



disti 



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1. Wilmattea minutiflora. 



Hylocereus minutiflorus Britton and Rose, Contr. U. S. Nat. Herb. 16: 240. 1913. 

 Cereus minutiflorus Vaupel, Monatsschr. Kaktecnk. 23: 86. 1913. 



A slender, high-climbing vine, the joints 3 -angled, deep green, the angles sharp but not winged, 

 not horny-margined; areoles 2 to 4 cm, apart; spines usually i to 3, minute, brownish; flowers only 

 5 cm. long, opening at night, rarely remaining open until 9 o'clock in the morning, very fragrant; 

 flower-tube only 10 mm. long, or even less; outer perianth-segments linear, red on the midvein and 

 at the tip, 3 to 4 cm. long; inner perianth-segments very narrow% acute, white ; stamens white, about 

 i^ cm. long, borne in a series at the base of the inner perianth-segments; scales on the ovary some- 

 times bearing bristles in their axils, sometimes naked, oblong to ovate, purple or greenish at base; 

 style white, 2 cm. long, thick; stigma-lobes white. 



Type locality: Near Lake Izabel, Guatemala. 

 Distribution: Guatemala and Honduras. 



A cutting of the plant developed 3 thin wings 10 mm. wide, the areoles producing 2 

 to 5 long white hairs but no spines. In all the young joints 5 to 8 wings started, but all but 



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