OF ARTS AND SCIENCES. 165 



acutis })lerumque in petioluin brevissimum marginatum attenuatis : 

 calyce iufuudibuliformi-Ciimpanulato pedicello ajqiiilongo vel breviore 

 5-deutato, dentibus latis acutiusculis ; stigmatis lobis spathulatis deor- 

 snm in apicem styli alato-decurrentibus. — Nierembergia {Leptoglossis) 

 viscosa, & BrowalUa (Leptoylossis) Texana, Torr. Bot, Mex. Bound. 

 155, 156. — Western Texas, AVright, Bigelow. Adjacent Mexico, at 

 San Carlos, Berlandier, no. 3194. The two names above-cited refer 

 to the same plant. It was probably intended that the hrst should be 

 cancelled. 



Leptoglossis Coulteri. Puberula ; caulibus debilibus laxis ; 

 foliis ovatis oblongisve tenuiter petiolatis ; pedicellis longioribus ; 

 calycis lobis triangulari-lanceolatis tubo turbinato cequilongis ; corollas 

 fauce subgibbosa : stylo sub stigmatis lobis subito latissirae alato. — 

 Mexico, coll. Coulter, no. 1346. 



In habit and foliage these two plants are not unlike Bouchetia, a 

 genus established by Benthara and Hooker upon one of DeCandolle's 

 two species. The corolla is that of Nierembergia, except that the 

 limb is even flatter, or completely rotate, and the stamens are included 

 in a short and abrupt but small faucial enlargement of the very 

 summit of the tube. The five filaments are all short, not far from 

 equal in length ; the posterior destitute of anther ; the upper anthers 

 small, but polliniferous ; the lower pair with far larger fertile anthers. 

 These characters generally accord with Leptoglossis, Beuth., except ia 

 the shortness and comparative small ness of the throat, wliich in true 

 Leptoglossis is tubular-funnelform and continued downward for con- 

 siderable distance, thus giving the filaments greater length and lowness 

 of insertion. In the style, these plants partake of the peculiar charac- 

 ter of the related genus Reyesia, Clos {Fteroglossis, INIiers, which I 

 know only from the two published figures), except that the stigma is 

 manifestly two-lobed. The scarious-membranaceous wing, which is 

 decurrent from these lobes down the apex of the style, was overlooked 

 by Dr. Torrey in our scanty flowers of the Texan species. Its breadth 

 on either side is not quite equal to the length of the thickish stigma 

 lobe. But in the allied Mexican species the whole wing is much 

 broader, and quadrate or slightly cordate, not flabelliform-obcordate as 

 in Reyesia. The latter genus, of a single species, seems to be pretty 

 well marked in habit, the complete absence of the fifth stamen, &c. 

 But the two plants here described, notwithstanding their resemblance 

 to Nierembergia in general form of the corolla and to Reyesia in the 

 winged apex of the style, are probably best disposed of under a sub- 

 genus of Leptoglossis. 



