STIPKAE 1'LA1T;NSB« 



8T1PA LiNN 



Ch((r. Spiculac unUlorac; flosculusanthopodio (siipUcx. ralhj auct. i 

 brevi v. elongato, semper e teretc obconico apicc acuto, rarius 

 obtuso, glabro v. pubcscente suffultus; glumae 2, mcmbranaccae 

 parum inaequales, flosculo ^rvc breviorcs v. longiorcs; alumrlla 

 infcra v. cxtcrior tcnuis v. crassa, xvc coriacca, saltcm ad malu- 

 ritatcm, pul)csccns, villosa v. glabra, laevis striata v. papillata, 

 apice attcnuata v. contracta, sacpcquc +ve callosc v. meml)raiio- 

 se coronata, arista pcrsistcntc v. dccidua, ipsa brcvii)rc v. lon- 

 giore armala, inairjinibiis snpcrjjositis .imhricdtis) ^ altero e.ctcrno altc- 

 rmn internuin ohterjcntc ^ nec adnexo-subvalvatis; glumella supera v. 

 interna quam iiifcra acquiloiifja v . brerior, sacpcque brevissiina sub- 

 iinperspiru(( , plana non v. obsolctissiinc ncrvosa.i nunquani carinata 

 nec sulcata; lodiculae 2 v.3; stamina 3; styli breves v. longiusculi 

 distincti, sligmatibus plumosis; caryopsis glumella infera ±ye indu- 

 rata arctc involuta, libcra. 



CLAVIS DICIIOTOMICA SUP.GENEUUM 



1. Arisla gluinclla \ 



brevior I. Ax.vTnERosTiPA Hack. 



' longior (sappius pluries) 2 



2. Arisla. 



3. Arisla. 



^ tota v. pro parte longe villosa 3 



' tota nuda scabra v. pubescens 4 



/ per tota longitudiue villosa v 



\ plumosa II. F^TiLOSTirA Speg. 



j in parte infera tantuni, subgeniculis, 



V longe viilosa III. PArrosxirA Speg. 



