HYLOCEREUS. 



1S9 



)llected by Brother Leon on a wall, Jata E 

 July 14, 1913 (No. 3719). Living sped 



^red in September 



No. i.'^Q.^i from lime 



from the Isle of Pines sent to us by O. E. J 

 specimen which we have seen does not enabL 



Figure 265 shows a section of a branch ( 



9. Hylocereus lemairei (riooker) Britten and Re 



re J. A. 

 A plant 



2: 428. 1909 



Cereus lemairei* Hooker in Curtis's Bot. Mag. 80: pi. 4S14. 1854. 

 Cereus trinitatensis Lemaire and Hermcnt, Ilev. Ilort. IV. 8: 642. 1859, 



A somewhat slender, high -climbing vine; joints 3-angled, freely rooting on one side, 2 to 3 cm. 

 in diameter, plain green; margins with slight elevations at the areoles; areoles 2 to 2.5 cm. apart; 

 spines usually 2, very short, swollen at base, brownish; flower-buds elongated, acuminate; flower 

 about 27 cm. long; tube, including ovary, 15 cm. long; scales on ovary and lower part of the tul>e 

 ovate, dark green, with the margins and tips deep purple; scales on upper part of the tube niucli 

 elongated, but marked like the lower ones; outer perianth-segments about 20, 12 cm. long, i cm. 

 wide or less; edges slightly upturned, widely spreading or reflexed, yeUowish green, sometimes a 

 little purplish at the tip and the inner one somewhat rose-colored at the base; inner perianth-seg- 

 ments about 15, mostly oblanceolate, 3.5 cm. broad at the widest portion, acute, the lower portion 

 pinkish, above nearly pure white; filaments cream-colored, about three-fourths the length of the 

 inner perianth-segments; style thick, nearly as long as the inner perianth-segments; stigma-lobes 

 cleft to the middle and the branches often notched at tip; flower somewhat odorous, not very 

 pleasing; fruit purple, oblong, 6 to 7 cm. long, when mature spHtting down the center almost to 

 the base into 2 nearly equal parts and exposing the white flesh and black seeds. 



Type locality: Not cited. 



Distribution: Tr\m.d2id3.ndToh2igo. Perhaps also Surinam. 



The above description was based upon specimens sent by Mr. Wm. Broadway in 1907 

 from Trinidad, which flowered in the New York Botanical Garden in July and August 

 1912 (No. 27689). Our reference (Contr. U. S. Nat. Herb. 12:428) of this species to 

 Antigua and doubtfully to Culebra and Porto Rico, in which we followed previous authors, 

 can not be supported by specimens in our collections. 



This is a very beautiful species which has long been in cultiva- 

 tion, but the native home of which, until recently, has not been 

 known. In 1909, Mr. Broadway sent specimens from Trinidad 

 which soon flowered, enabling us to identify it definitely. Sir 

 Joseph Hooker, under Cereus lemairei iri Curtis's Botanical Mag- 



volume 



my 



made 



it is probably a native of that island." ■ A copy of this drawing is 



Herbarmm 



different species from Cereus lemairei, and may represent the ^^^ 266.-stigma-iobes of 

 Hylocereus collected in the spring of 1913 on Antigua by Dr. Rose n* lemairei. X0.7. 



herbarium 



stem 



may be that Hooker 

 This is one of the 



"s; however, 

 H. undaius. 



Illustration: Curtis's Bot. Mag 



from Mr. Broadway's Trinidad plant which flowered in the New York 

 Botanical Garden. Figure 266 shows its style and stigma-lobes. 



*Cereus lemoinci (Mollers Deutsche Giirt. Zcit. 6^ 92. 1891) may be only a misspelling of this name. 



-tr . 



