66 AGRO S TIDEZJE. 
67. COLPODIUM Tz. , Bnowx. 
Spicula uniflora; flore subsessili, cum vel absque rudimento setuliformi floris 
superioris. Glumee dus, membranacee , acutato, subcarinato-concave ; superior 
paulo major, flore brevior. Palee due, membranacee, apice hyalinz; inferior 
carinato-concava, trinervia, apice rotundato-emarginata, interdum dorso mucro- 
nato-subaristata (Brown.); superior paulo brevior, concava, apice rotundata, dorso 
binervia. Squamule dus, laterales, integrae (semibifide, teste Brown.), superne 
angustate , membranacee , hyaline, glabre , ovarium squantes. Stamina tria. 
Ovarium oblongum, glabrum. Styli duo, terminales, brevissimi. Stigmata dense 
plumosa; pilis imbricato-papillosis , hyalinis, integris vel 2-3-fidis. Caryopsis... 
Gramen glabrum. Culmi erecti vel adscendentes. Folia plana ; ligula indivisa, 
imberbi, folio latiore; vagina secundum longitudinem fissa. Panicula coarctata ; 
ramis semiverticillatis. Spiculee cum pedicello haud articulata. 
Primo intuitu Pocw affinior, quam Agrostidi vel Vilfe; Dupontie et Deschampsice 
item similis. — De affinitate cum. Colpodii speciebus "Trini, presertim C. Ste- 
veni et compresso incertus est Ill. Brown. 
SPECIES : 
1. Colpodium latifolium Brown. CAloris Meiv. (Agrostis paradoxa Brown. in Ross. Foy.) — Insula 
Melvilleana, Americe arcticze littus orientale. 
2. Colpodium Steveni Trin. (Agrostis versicolor Stev. , Bieb.) — Alpes summi Schahdagh et T yfendagh. 
3. Colpodium compressum Trin. in Spreng. N. Entd. (Agrostis compressa Torrey.? — Agrostis Tor- 
reyana Schult.?) — Nova Casaria? 
68. CINNA. Luw. 
Spicula uniflora. Glume due, carinate, flore breviores. Pale dus, basi pilis 
cincte (semper?) ; inferior acutata, interdum apice vel infra apicem mucronato- 
subaristata ; superior binervia (nervis approximatis), sepe ad basim pedicello 
brevi floris abortivi instructa. Squamule due, glabrae. Stamina 1-5. Ovarium 
glabrum. Stigmata duo, terminalia, subsessilia, plumosa; pilis simplicibus. Ca- 
ryopsis glabra, libera. 
. Gramina plerumque ramosa. F'olia plana. Panicule ramose, diffuse vel coarc- 
tat&e , rarius spiceeformes; spiculis pedicellatis. 
SPECIES GENUINE : 
1. Cinna arundinacea Linz. (Agrostis Cinna Lam., Pursh. — Mühlenbergia Cinna Triz, Unifl.) — 
America borealis. 
