Chase — Notes on Genera of Panlreae. I. 191 



sidered by Nash (1. c.) in his treatment of the genus the following are here 



transferi'ed : 



Syntherisma adusta (Nees) 



rmticinn (idiiMiun Nees. 1829. Agros. Bras. 101. "Habitat in Brasilia 

 meridionali. (Sellow.)" 

 Syntherisma badia (Scrlbn. & Merr.) 



PiinU'.iua {tSijntlierisina) badinm. Scribn. & Merr. 1901. U. S. Dept. Agr. Div- 

 Agros. Bui. 24 : 12. "Sierra de San Felipe, State of Oaxaca" 915 

 C. L. Smith. 

 Syntherisma tiackeli (Arech.) 



Anthaeiiantia IlacMI Arech. 1894. Anal. Mus. Nac. Montevideo 2 : 96, t. 

 5. Figueira, Uruguay. 

 Syntherisma velutina (DC.) 



3nUinn vdutinum DC. 1813. Cat. Hort. Monsp. 12(>. " Hab. in Mexico." 



Paspalumf velutinum Kth. 1829. Rev. Gram. 1 : 27. 



Represented by Pringle 66^3 and 9565. 

 Syntherisma Perrotteti (Kth.) 



Funicum Perrotteti Kth. 1829. Rev. Gram. 2 : 395. t. 3. " Crescit in Sene- 

 gal ia, prope Walo." 

 Syntherisma stenotaphroides (Nees) 



Fanicum (§ Digitaria) stevotaphroides Nees 1854 in Steud. Syn. PI. Glum. 

 1 : 41. "Ins. Choin legit Cuming." 



This and an allied species are peculiar in having a thickened rachis, the 

 solitary spikelets sunken in the alternate notches. 



Species as yet imperfectly understood are not here transferred. 



Genus LEPTOLOMA gen. nov. 

 Inflorescentiapaniculata, paniculapjauciflora, maturitate diffusa; spiculae 

 1-florae, fusilormae, solitariae, aut raro per paria, in pediceUis tenuibus 

 triangularibus ; gluma prima minuta aut deficiens, secunda 3-nervis ; lem- 

 ma neutrum 5-7 nerve ; fructus ellipticus, acutus ; lemma hermapliroditum 

 cartiltigineo-induratum, papillosum, marginibus delicatus hyalinas, planis; 

 paleasimilis ; caryopsis oblongo-elliptica lemmate paleaque inciusa, libera. 

 Gramina perennia, caespitosa, ramosa, culmis fragilibus, laminis planis, 

 ligulis membranaceis. Maturitate pHniculae se dissipant et pervolvunt 

 Panico capillar! similes. Nomen ab Xeirros delicatus et XQfia margo. 



Inflorescence a few-flowered panicle diffuse at maturity ; 

 spikelets 1-flowered, fusiform, solitary or rarely in 2's on slen- 

 der triangular jiedicels ; first glume minute or obsolete, the 

 second 3-nerved, nearly as long as the 5-7 nerved sterile 

 lemma, a more or less prominent stripe of appressed silky 

 hairs down the internodes and mai'gins of each ; sterile lemma 

 enii)ty or enclosing a minute nerveless rudimentary palae ; 

 fruit elliptic, acute, brown ; fertile lemma cartilaginous-indu- 

 rated papillose, with delicate hyaline flat margins, enclosing 

 a palea of the same texture : styles long and delicate, stigmas 

 plumose, the branches more long and slender than in Panicani, 

 rather le.ss so than in Syntherisma; grain oblong-elliptic, in 

 section plano-convex ; free within the closed lemma and palea . 

 Tufted branching perennials with brittle culms, flat blades, 



