EPIPHYLLUM. 197 



Type locality: Not cited. 



Distribution: Oaxaca, Mexico. 



This plant is a night-bloomer but the flowers are late in closing, sometimes remaining 

 partially open as late as 9 o'clock in the morning. 



The above description is compiled from that of Salm-Dyck with reference to a plant 

 at the New York Botanical Garden, received from Paris in 1909. 



It resembles E. strictuni but the joints are more flexible and broader and it has some- 

 what larger flowers than that species ; we have a herbarium specimen identified by Schumann 

 which was collected by P. Sintenis from a cultivated plant grown in Porto Rico. 



In 191 1 C. Conzatti sent us from Coyula, Cuicatlan, Oaxaca, cuttings of what we now 

 take to be this species. These grew into vigorous plants 3 meters long and flowered in 

 Washington in 192 1 and 1922. 



Illustration: Goebel, Pflanz. Schild. i: f. 56, as Phyllocactus stenopetalus (seedling). 



Figure 202 is from a photograph showing the top and base of a branch from Pro- 

 fessor Conzatti's plant. 



15. Epiphyllum cartagense (Weber) Britton and Rose, Contr. U. S. Nat. Herb. 16: 256. 1913. 



Phyllocactus cartagensis Weber, Bull. Mus. Hist. Nat. Paris 8: 462. 1902. 

 Phyllocactus cartagensis refractus Weber, Bull. Mus. Hist. Nat. Paris 8: 462. 1902. 

 Phyllocactus cartagensis robustus Weber, Monatsschr. Kakteenk. 15: 180. 1905. 



Plants 2 to 3 meters long, usually more or less flattened in the lower and older parts; joints 

 short or elongated, 4 to 5 cm. broad, coarsely toothed or crenate, green; flowers opening at night, 

 the slender tube 10 to 15 cm. long, reddish, bearing a few short distant scales; outer perianth- 

 segments pink to yellowish; inner segments 5 to 7 cm. long, white; stamens in one series; filaments 

 white; style pink to white; stigma-lobes yellow; fruit oblong, 7 to 8 cm. long, 3 cm. in diameter, 

 red without, white within. 



Type locality: Near Cartago, Costa Rica. 

 Distribution: Costa Rica. 



A species apparently composed of several races, differing in margins of the joints, in 

 size of flowers, and in color of style. It is called in Costa Rica platanillo de monte. 



16. Epiphyllum hookeri Haworth, Phil. Mag. 6: 108. 1829. 



Cereiis hookeri Link and Otto, Cat. Sem. Hort. Berol. 1828. 



Cereus marginatus Salm-Dyck, Hort. Dyck. 340. 1834. Not De Candolle, 1828. 



Phyllocactus hookeri Salm-Dyck, Cact. flort. Dyck. 1841. 38. 1842. 



Plants usually 2 to 3 meters long, but sometimes 7 meters long ; joints 5 to 9 cm. broad, rather 

 thin, light green, deeply crenate; flowers inodorous, the tube slender, 11 to 13 cm. long, greenish, 

 bearing a few narrow, slightly spreading, rose-tipped scales; outer perianth-segments narrow, 

 greenish pink, sometimes rose-colored at tip, the inner pure white, narrow, 5 cm. long; stamens in 

 a single series, attached at top of throat ; filaments white ; style carmine, except yellowish base and 

 pinkish top, smooth in upper half, papillose in lower half; stigma-lobes yellow; ovary green, 

 somewhat angled, 2 cm. long, bearing a few small spreading scales; fruit oblong, 8 cm. long, red, 

 somewhat angled, bearing a few scattered scales; seeds numerous, black, shining, reniform. 



Type locality: Cited as Brazil, presumably in error. 



Distribution: Tobago, Trinidad, and northern Venezuela. 



This plant when it first fiowered in cultivation in 1826 was taken for Cactus phyllanthus 

 and was so figured and described in the Botanical Magazine, but it was soon discovered 

 to be very different from that species. 



While Brazil is cited as the type locality for this species we have seen no specimens 

 from any point south of Venezuela. The plant is and has been widely cultivated in 

 tropical America, commonly under the erroneous name, Epiphyllum phyllanthus. In 

 Trinidad it forms great masses on trees and on coastal cliffs, ascending the trees to a length 

 of ID meters or more, branching profusely, and is very floriferous. 



Phyllocactus marginatus Salm-Dyck (Cact. Hort. Dyck. 1844. 37. 1845) doubtless 

 belongs here. 



