GRAMINEAE juss. (Panicum,) 81 



36. P. puberulum Kunth. Gram. 1. 32. Foliis pilosis; spi- 

 cis alternis, tribus, filiformibus, divaricatis; valva exteriore vix 

 ulla ; interiore parva ; valvula neutra oblonga, obtusa, pube cris- 

 pula, glumellae fertili aequali; valvulis fertilibus acutiusculis, 

 purpurascentibus. Link. Digitaria puberula Link. Hort. 1. 223. 

 — Patria? — Affine Digitariae serotinae (Paspalo serotino 

 Fluegge.), fide Link. 



37. P. erevifoliUM Kunth. Gram. 1. 32. Foliis brevibus, 

 pilosis; vaginis hirsutissimis ; spicis alternis, patentibus; valva 

 exteriore minuta; interiore glumella vix duplo minore, superne 

 pilis paucis ; valvula neutra lanceolata, trinervia, acuta, margine 

 subpilosa. Link. Digitaria brevifolia Link. Hort. 1. 225. — Me- 

 xico. 



38. P. horizontale Mey. Essea. 54. Spicis verticillato- 

 paniculatis, pilis singulis adspersis; floribus oblongo-lanceola- 

 tis ; foliis vaginisque piloso - villosjs ; culmis basi radicantibus. 

 Mey. Digitaria horizontalis JVilld. Eanm. 92. Digitaria setigera 

 Roth. Nov. Spec. 37. Link. Hort. 1. 225. (teste Link.) — Brasi- 

 lia, Essequebo, St. Domingo, St. Thomas. — An Panicum li- 

 neare Linn. ? (Link.) 



39. P. STIPATUM Presl. in Hel. Ilaenk. 1. 297. Culmis ad- 

 scendentibus , glaberrimis ; vaginis foliisque margine undulatis, 

 tuberculatis^ villosis ; spicis corymbosis, subalternis, erecto-pa- 

 tentibus ; rhachi flexuosa, triquetra, scabra; spiculis triseriatis, 

 lanceolato-subulatis, binatis, altera subsessili, basi fasciculo pilo- 

 rum stipatis ; gluma inferiore minima ; superiore lanceolata, acu- 

 ta, ciliata, dimidio breviorc flore hermaphrodito ; palea neutra 

 ovato-lanceolata, acuta, ciliata^ paleam inferiorem hermaphroditi 

 excedente. Presl. — Mexico et ? Luzonia. 



40. P. RADICOSUM Presl. in Rel. Ilaenk. 1. 297- Culmo 

 repente, adscendente, semitereti nodisque glabris ; vaginis infi- 

 mis pubescentibus ; foliis scabris, margine undulatis ; spicis sub- 

 quaternis, alternis, corymbosis ; rhachi partiali plana^ margine 

 scabra, latitudine spicularum triseriatarum lineari-Ianccolatarum; 

 gluma inferiore minima; superiore lineari, spicula triplo minore 

 paleaque neutra florem hermaphroditum aequante margine fim- 

 briatis, trinerviis. Presl. Digitaria repens Willd. herb. 



fj) procerius; corymbo fere duplo longiore. 

 — Luzonia. — Affine P. fimbriato. 



41. P. fimbriatum Kunth. Gram. 1. 133. Presl. in Rel. Haenk. 

 1. 298. Caule basi repente; geniculis subbarbatis; foliis basi 

 pilis sparsis obsitis ; vaginis inferioribus pilosis ; superioribus 

 saepe glabris; spicis alternis , 5-7> patentibus ; valva exteriore 

 minima; interiore glumella duplo minore, superne pilosa ; val- 

 vula neutra lanceolata, 5-nervia, acuta, ciliato - fimbriata. Link 

 Digitaria fimbriata Link. Hort. 1. 226. — Brasilia, Mexico, Ca 

 lifornia. 



42. P. microbAchne Presl. in Rel. Ilaenk. 1. 298. Culmo 

 Kuntii. Synops. I. [ 6 ] 



