186 



Chase — Notes on Genera of Paniceae. I. 



Gram. 497), and Trinius (1834. Mem. Acad. St. Petersb. VI. 8-' : 121). 

 Bentham (18S1. Journ. Linn. Soc. Bot. 19 : 39) transfers it to Anthttenautin 

 stating: " From these [N. Am. Anthaennntia'] I can not separate genericall}' 

 the South American Leplocorypltiuia Nees, which be- 

 sides some slight specific characters onlj' differs from 

 the North American species in the second glume l)eing 

 constantly, instead of occasionally only, empty." Hems- 

 ley (ISS-'i. Biol. Cent. km. Bot. 3 : 483) follows IBentham ; 

 Fournier (1881. Mex. PI. 2: 13) upholds Lfptnrori/pJtiuni. 



Dcxcriptinn. — Spikelets in narrow panicles, lanceolate; 

 first glume obsolete ; second glume and sterile lemma 

 3 and 5 nerved, the internerves, which are not broad 

 and infolded (or plaited) as in AuUiaemnUla, each with 

 a row of long coarse hairs arising from tubercles (the 

 tubercles sometimes obscure), the second glume shorter 

 than the sterile lemma which equals the fruit and 

 ■which is empty; fertile lemma slightly cartilaginous- 

 indurated, minutely papillose (the papillae finer than 

 in any of the other genera), chestnut with a white, 

 delicately hyaline, summit, lacerate and often sparingly 

 ciliate, a narrow hyaline margin, extending down the 

 sides to about the middle; on the back near the base 

 is a small impressed area thin and white ; palea with summit and margin.s 

 like those of the lemma, not enclosed above, the 2 nerves obscurely visible ; 

 grain oblong-elliptic, in section plano-convex. 



As shown by the fruit this seems to be, as Nees considered it, most nearly 

 allied to Valotn. [Trichadme Nees) from which he separated it chiefly on 

 the absence of the first glume. The inflorescence is like that of Anthnr- 

 navtld, which it resembles also in lacking the first glume, but differs from 

 in lacking the neuter palea or staminate flower and in the convex, not 

 boat-shaped, lemma with a broad hyaline summit. It differs from both 

 Valoi'i and AvlhiifiKiutin in the fruit open at maturity. {\ large number 

 of specimens were examined and none in or past bloom were found closed-.) 

 Since this species fits so poorly in any other genus it seems wisest to main- 

 tain the one Nees established for it. Nees' single other species of Lfpto- 

 cory})liinn) we have not seen. 



Gknus VALOTA Adans. 1763. F.\m. Pl. 2 : 49o. 



Gramen. Avenae. Sloan, t. 14. f. 2. Couronne de la gainedesfeuilles : 

 Membrane mediocre. Fleurs : Panicule etag^e. Calice : Ovoide, sans 

 aretes, a 3 bales velues. Corolle: Sans aretes. 



The reference to Sloane serves to identify the genus, which the very in- 

 sufficient description would not do, and fixes its identity with Andropugon 

 inmlare L. 



Andropogon insulare L. 1759. Pugill. Jam. 30; and Sp. PI. Ed. 2. 1763. 

 2 : 1480. In the Pugillus no citation is given ; in the Species Plantarum 



