WEBEROCERKUS. 



215 



in Costa Rica in 



Wm. R. Maxon 



May 



2. Weberocereus 



Rhipsalis biolleyi Weber, Bull. Mus. Hist. Nat. Paris 8: 467. 1902 

 Ceretis biolleyi Weber in Schumann, Gesamtb. Kakteen Nachtr. 60. 



12: 431 



1909. 



1903. 



Branches long, slender, and flexuous, climbing over or hanging from branches of trees 4 to 

 6 mm. m diameter, terete or sHghtly angled, in juvenile plants often flattened or 3-winged usuallv 

 spmeless but occasionally bearing i to 3 yellow spines from an areole; areoles small, remote- flowers 



ary 



Type locality: Vicinity of Port Lim6n 

 Distribution: Costa Rica. 



mm. in diameter 



from these branches queer iuvenile forms 



mm 



and spineless. When cuttings are made 

 In one case a flat, thin, 2-edged branch 



from the same cuttings a similar 

 Hylocereus. 



but 3-angled, like a juvenile 



X, figure 2 , is from a plant collected 

 New York Botanical Garden, July 



3. Weberocereus panamensis sp. nov. 



Stems I to 2 cm. broad, strongly 3-angled or some joints flat; margins acute, indented; areoles 

 small, each hidden beneath a smah thick scale, sometimes bearing i to 3 short weak spines; flower 

 4 to 7 cm. long; outer perianth-segments and inner scales yellowish green, erect; inner perianth- 

 segments white, oblong; tube proper smooth and white within; throat i cm. long; stamens included; 

 filaments white, a part attached to the lower face of the throat and a part to the upper margin ; 



with 



green 



tubercied, at least when young. 



Fig. 295. — Weberocereus panamen.sis. 



Collected in forest thickets along the Rio Fato, Province of Colon, Panama, July 191 1, 

 by H. Pittier (No. 3903) and flowered first in Washington in 19 13. 



Plate XXXVIII, figure 3, is from the type specimen, which flowered in the New York 

 Botanical Garden, September 20, 19 15. Figure 295 shows a fruiting branch collected by 

 Mrs. D. D. Gaillard at Lake Gatun, Panama, in 1913. 



