Chase — Notes on Genera of Paniceae. I. 191 



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

 transferred : A S\ / 



Syntherisma adusta (Nees)^U ^' v *^*~ 



Puni cam adutfum Nees. 1829. Agros. Bras. 101. "Habitat in Brasilia 

 ijneridionali. (Sellow.)" a . . 



Syntherisma badia (Scribn. & Merr.) % f^^*^^*^ 

 ; Panicurn (Syntherisma) badium Scribn. & Merr. 1901. U. S. Dept. Agr. Div- 

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



Synthensma Hackeh (Arech.) r~ ■ j"' ~~ v / k. ' \4dMh./A 



Anthaenantia HacMi Arech. 1894. Anal. Mus. Nac. Montevideo 2 : 96, t. 



Syntherisma velutina (DC.) &^I^(t^^V \&&? H^cA^>. 



Milium velutinvm DC. 1813. Cat. Hort. Monsp. 12fi. " Hab. in Mexico." 

 Paspalum? velutinum. Kth. 1829. Kev. Gram. 1 : 27. s«e "Y^^jLXojvjLcv. 

 Represented by Pringle 6623 and 9565. x<3 *-1 ^^^ - 



Syntherisma Perrotteti (Kth.) fir. ijan^M^^^-u^' *** 



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



Syntherisma'JtenotaphroVes (Nees) A ^W^/^^^ 



Panicurn ($ Digitaria) stenotaphroides Nees 1854 in Steud. Syn. PL 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. 

 Infiorescentia paniculata, panicula paucifiora, maturitate diffusa ; spiculae 

 1-florae, fusiformae, solitariae, aut raro per paria, in pedicellis tenuibus 

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

 ma neutrum 5-7 nerve ; fructus eliipticus, acutus ; lemma hermaphroditum 

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

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

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

 ligulis membranaceis. Maturitate paniculae se dissipant et pervolvunt 

 Panico capillari similes. Nomen ab \eirr6s delicatus et \Qfia margo. 



A Inflorescence a few-flowered panicle diffuse at maturity ; 



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



\ der triangular pedicels ; first glume minute or obsolete, the 



<• / • ) second 3-nerved, nearly as long as the 5-7 nerved sterile 



I <%_ t lemma, a more or less prominent stripe of appressed silky 



| hairs down the internodes and margins of each ; sterile lemma 



f « '.' I | empty or enclosing a minute nerveless rudimentary palae ; 



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



I rated papillose, with delicate hyaline flat margins, enclosing 



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



,M plumose, the branches more long and slender than in Panicurn, 



rather less 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, 



