192 



THE CACTACEAS. 



14. Hylocereus trigonus (Haworth) SafTord, Ann, Rep. Smiths. Inst. 1908: 556 



1909 



ICaclus triangularis foliaceus Jacquin, Stirp. Amcr. 152. 

 Cereus trigonus Haworth, Syn. PI. Succ. 181. 1812. 

 Cer«M J ren<//7Mj Paulsen, Journ. Bot. 56: 235. 1918. 



1763. 



meters 



green 



accessory 



greenish 



fruit oblong or oblong-obovoid, red, 10 cm. long, becoming nearly smooth. 



Type locality: Not cited. 



Distribution: Hispaniola, Porto 

 Rico, Vieques, Culebra, St. Jan, St. 

 Thomas, Tortola, Virgin Gorda, and 

 St. Croix. Recorded by Boldingh (Fl. 



West 



297) from 

 Martin 



Eus 



This species, although known to 



Burmann 



750-1 



species until 181 2, when it was de- 

 scribed by Haworth, In 1803 Haworth 

 had described it as a variety of Cactus 

 triqueter (Misc. Nat. 189), but had 

 said it was twice the size. Cereus 

 venditus Paulsen is based upon the 

 juvenile form of this species from a 

 plant collected on the Island of St. Jan. 



" istrations: SafTord, Ann. Rep, 

 Inst. 1908: pi, 12, Plumier, 

 PI. Amer. ed. Burmann, pi, 200, f, 2, 

 as Cactus etc. ; Contr. U. S. Nat. Herb. 



Smiths 



Fig. 268. — Hylocereus trigonus. 



Loudon, Encycl. PI 



asCer^M5sp ;? Jacquin, Stirp. Amer. pi. 181, f. 65, as Cactus triangularis foliao 



^ 



fruiting 



of the New York BotanicalGarden. Figure 268 is from a photograph taken bv F. E. Lutz 



Arecibo 



ocereus triangularis (Linnaeus) Britton and Rose, C 



Cactus triangularis Linnaeus, Sp. PI. 468. lys^ 



Cereus compressus Miller, Gard. Diet. ed. 8. No." 10 1 768 



Cereus triangularis Haworth, Syn. PI. Succ. 180 181 2 ' 



1909 



long aSal rts r^"^^^^^ 3 to 4 cm. broad, giving off numerous 



2 cm ^part priidoa^^^^^^^ ^\7k \ '^' u ^^^ ^' '^'^^^^^ ^^^^^^ed at the areoles ; areoles about 



out^r S\h Sents^ W^^^ wT.'"'^'' ^"* ^'^ '^^"^^ ^^^^^: A^^^^^ 20 cm. long or more; 

 mentsHnner perS^^^^^^^^^ \° ^ cm. long, longer than the Inner seg- 



2 to 5 cm. long- fruit red ' ^' ^""^^^^ '''' ^^^ ^^^''^^ ^"^ flower-tube oblong, green, 



Jamaica 



native there, however. 



m: Very common on rocks and trees along the coast of Jamaica 

 H-Jrtangularts were collected by John F. Cowell in Panama. di 



pictusDe Candolle (Prodr. 3: 468) 



green jomts, with spines often setiform 



-t> 





r 



3 '"r 



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h 



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* 



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