118 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



CTJCURBITACEAE. 



A NEW SPECIES OF CAYAPONIA AND TWO OF ANGUBIA. 



Cayaponia macrantha Pittier, sp. nov. 



Stems slender, Bulcate, glabrous, slightly puberulent at the nodes, densely foliose; 

 branchlets short and numerous. 



Petioles sulcato-striate, 1.5 to 2 cm. long. Leaf blades ovate, 7 to 12 cm. long, 5 

 to 10 cm. broad, deeply trilobate, attenuate and slightly emarginate at base, dark 



and scabrous above, pale and 

 minutely white-dotted beneath 

 with a few elliptic glands near the 

 petiole ; margin remotely dentate ; 

 lateral main ribs not marginal at 

 base; lobes ovate-lanceolate, the 

 medium one longer, the lateral 

 ones oblique and often bilobate. 

 Tendrils simple or bifid. 



Male flowers long-pedunculate, 

 solitary in the axils. Peduncles 

 erect, striate, 4 to 6 cm. long. 

 Calyx campanulate, 1.8 cm. long 

 and about 1.5 cm. broad, brown- 

 ish, sparsely covered with multi- 

 cellular hairs emerging from a 

 bulb-like base; teeth remote, re- 

 flexed, acutely triangular, 3 to 5 

 mm. long. Corolla yellowish 

 white, large (4 cm. long, nearly 

 5 cm. in diameter when open) 

 tube woolly-pubescent inside; 

 lobes ovate-rounded, 2 cm. long, 

 about 1.5 cm. broad, covered on 

 both faces with a dense velvety 

 indument consisting of multi- 

 cellular hairs. Filaments of sta- 

 mens 5 mm. long, woolly; anthers 

 coherent, forming an ovate-cylin- 

 drical head 13 to 14 mm. long and 

 4 mm. in diameter. Pistillodiuni 

 thick, trilobate. Female flowers 

 wanting. 



Fruit large (about 5 cm. in di- 

 ameter), round, yellow with 

 green stripes. Seeds like a 

 middle-sized bean, 13 mm. long, 

 7.5 mm, broad, compressed. 

 Costa Rica: Climbing on bushes at Las Vueltaa de Tucurrique, Reventazon Valley, 

 at an altitude of about (J35 meters, Tonduz, flowers and fruits, December, 1898 (Insti- 

 tute ffs.-geog. Costa Rica no. 12840; U. S. National Herbarium no. 577647, type). 



Anguria magdalenae Pittier, sp. nov. Figure 24. 



Plant entirely glabrous, except the papillose petals. Stems slender, rounded, lon- 

 gitudinally striate, smooth. 



Leaves green and minutely punctate above, paler beneath, deeply emarginate at 

 the base and deeply 3-Iobate. Petioles rather strong, striate, 4 to 5 cm. long. Leaf 



Fig. 24. — Leaf and (lower parts of Angaria magdalenae. a, 

 Leaf; b, part of calyx showing two teeth; c, lolie of corolla; 

 d, stamen, a, Scale}; b-d, scale 6. 



