— -A)-2 — 



(lili Iciilia involucnui , gluinu 2-viilvis carlilagiuoa, valvis irregularitcr iiiae- 

 (liialil)iis, externa 2-fula, iiilerna apico aiislala ; gluma coioUina brcvis pedi- 

 cellata membranacco-hyaliiia bivalvis, valva externa, internani inajoreni apicc 

 inlograin vol 2-tidani aristatani, aniplcclans : arista articulata lil)era : lloris 

 maseiili gluma calyeina externa apicc breviler aristata, interna nmliea, reii- 

 (jua ut in liermapbrodilo : floris terlii rudimcntum pciigonii coi'ollini. 



5S. SOllGUM Pcrs. Florcs gcminati , suninii quandoqne tcrnati polyga- 

 ni(i-nionoici nnincs nt plurimum pedunculati in panicula vol racenio: (loris hcr- 

 iiiaplnodili pcrigonii glmiia calyeina 2-vaIvis cartilaginca mutiea, valva externa 

 apice 3-dcntata; gluma coroUina inclusa 2-valvis membranacca hyalina, externa 

 mutiea eiliata, interna multo minor apice 2-fida niutica vel aristata, arista arti- 

 culata infcrius contorta: lloris niasculi glunia calyeina cartacea 2-valvis, valvis 

 muticis, externa 3-(lentala; eorollina inclusa, valvis muticis ciliatis : caryopsis 

 ovoidca, glumis coroUinis, involuta: albumen niveo-farinaceum. 



59. HOLCL'S L. Flores binati polygomo-monoici spicati in jianiculae ra- 

 mis : perigonii gluilia calyeina communis 2-valvis, valvis subaetpialibus : eo- 

 rollina lloris liermafroditi sessilis cartilaginca 2-valvis, externa carinata, interna 

 aogustior : stamina 3: styli 2 breves: stigmata plumosa: squamula nectarifera 

 menibranaeca (issa: caryopsis tecta : floris masculi pedicellati conformis valva 

 externa dorso breviter aristata, arista articulata. 



60. ARRENANTIIKUUiM Palis. Flores binati polygamo-monoici basi bar- 

 bati in panicula contracta : perigonii gluma calyeina communis 2-valvis, valva 

 externa brcvi 1-nervi, interna 3-nervi : floris bcrmaphroditi gluma eorollina 

 2-valvis , valva externa 7-nervi apice Integra aut bifida mutiea aut vari- 

 mode aristata, interna 2-dcntata ad inargincm utrinquc inflexa, nervis eiliata: 

 squamae duo nectarifcrae laneeolatae: caryopsis valvis corolllnis involuta: floris 

 masculi triandri valva eorollina exterior longius aristata. 



(il. ROTTBOLLIA L. fil. Flores 1-2 hermaphroditi, quandoquc alter nia- 

 sculus, ante anthesim fovea rachidis immcrsi in spica curva vel recta: peri- 

 gonii gluma calyeina 1-2- valvis cartilaginca, flores semper tegens , valvis 

 externis in floribus tcrminalibus oppositis ; gluma eorollina membranacca bi- 

 valvis mutiea, valvis sul)ac(pialibus : squamae nectarifcrae duo parvac: caryo- 

 psis rostrata, valvis calyeinis cincta. 



62. PSILURUS Trill. Florcs solitarii spieati in fovcis raebidis articulatae 

 ante antbesim omnino absconditi: pcrigonii glumac calycinae 1-2-valvis, val- 

 vac laterales, llori multo minores; gluma eorollina 2-valvis, valvis longitudine 

 acqualibus externa cartacea ut plurimum longe aristata: stamen 1: squamae 

 nectarifcrae 2 minimac : caryopsis valvis calyeinis cincta. 



