TRiANDRIA. DIGYNIA. 
15 
PHLEUM. Cal. bivaivis, truncatus, acuminatiis, 
sessilis. 
PHLEUM. Cal. a valves \ lopped^ dagger-poinied 
siiting. 
AGROSTIS. Cal. blvalvis ; valvis acutls, corolla 
brevioribus. Stigmata plumosa. 
AGROSTIS. Cal. 2 valves: valves acute, Jliorter 
than the blojfom: fin all the English species longer.) 
DACTYLIS. Cal. bivaivis, cempressus; valva ma- 
jori carinata. 
DACTYLIS. Cal. 2 valves: valves concave, keeled^ 
* * Calyces biflori, vagi. 
2 Grasses. Flowers scattered’, 2 in each calyx. 
AIRA. Cal. bivaivis. Flosculi absque rudimento in- 
terjecto. 
AIRA. Florets, all hermaphrodite, without the rudU 
ment of a third. Cal. 2 valves. 
MELICA. Cal. bivaivis, sub-biflorus; rudimento 
tertii fiosculi interjecto. 
MELICA. Florets, all hermaphrodite. Cal. 2 valves. 
Nectary of 1 leaf, flefhy. 
'HOLCUS. Cal. bivaivis. Cor. arisiata. Flosculo al- 
tero masculo, apetalo. 
HOLCUS. Flowers hermaphrodite and male: Cal, 
hufk 2 valves, with 1 to 0^ florets. 
M. Bloss, owned. 
F. Bloss, awnless 1. Seed 1. 
* * * Calyces multiflori, vagi. 
ra.vssES. Flo wers featured, fever a I in each calyx, 
C 2 
