﻿500 Rusbv : Plants collected in South America. 



Gonolobus Brittonti sp. now 



Pubescent throughout, the branches terete, elongated, slender, 

 twining: petioles 1.5-2 cm. long, slender; blades 2.5-5 cm - l° n S> 

 1-2 cm. broad, ovate, the base cordate-truncate, the apex abruptly 

 short -acuminate, acutish, strigose, subferruginous on the veins un- 

 derneath : umbels about 5 -flowered, on peduncles about 1 cm. long ; 

 pedicels very unequal, the longest about 1 cm. long, about the same 

 in fruit : calyx -tube very short, saucer-shaped, the lobes 2 mm. 

 long, ovate, obtuse : corolla subrotate, 8 mm. broad, divided more 

 than half way, very veiny, the lobes ovate, obtusish ; outer crown 2 

 mm. broad, adnate to the base of the corolla except for a short 

 free annulus, light-colored ; inner crown shorter, of 5 ovate thick 

 scales, adnate at the base to the outer : stigmatic disk plane, the 

 center minutely elevated, thin, 2 mm. broad exclusive of its ap- 

 pendages, its 5 dark grooves terminating at the margin in minutely 

 recurved tooth-like points, these connected by slightly elevated, 

 sharp, light-colored ridges which form the bases of triangular lobes, 

 twice as broad as long, each terminating in a transversely elliptical 

 appendage about .5 mm. broad : pod broadly ovoid, inequilateral, 

 obtuse (?) smooth, nearly 1 dm. long. 



Mapiri, 2500 ft, May, 1886(110. 1045). 



The species differs from G. pai-viflorus Decaisne in having pedun- 

 cles shorter than the petioles, and the corolla not barbellate within. 



VAILIA gen. nov. (Marsdenieae). 

 Calyx 5-lobed, its glands wanting or indistinguishable, the seg- 

 ments obtuse. Corolla broadly campanulate, deeply 5-lobed, glab- 

 rous, the lobes obtuse. Crown adnate only to stamen-column, ot 

 5 scales, each of an outer and an inner ligule, the two adnate by their 

 margins at the base to form a pouch : the outer ligule inwardly 

 concave, free, except the margins at the base ; the inner ligule out- 

 wardly concave, the lower half, except the margins, adnate to the 

 stamen-tubes, the upper half free. Anthers with stout, obtuse, rigid. 



empty basal portions adnate to one another, except at the very 



base, and to the tube, constituting more than half their length, 



their hyaline apical appendages very small, strongly indexed, 

 broad, slightly exceeding the disk of the stigma ; lateral hyaline 

 appendages also present upon the inner face ; thecae rupturing trans- 



versely on the inner face. Pollinia solitary, large, marked in the 

 unopened anther by large external protuberances, strictly erect, 

 quite as high as the stigmatic margin, broadly ellipsoidal, then- 

 uppermost portions higher than the oblong, unappendaged cor- 

 puscle, the caudiculae somewhat thickened, regularly curved. 



( To be contiiuit-d. ) ■ 



