TRIANDRIA, = tay 
Grasses are, the Festuca ovina, the Poa alpina, and the 
_ AtRA ceespitosa, all which are viviparous, and consequently 
propagate themselves without seeds. ; 
In general, the leaves furnish pasturage for cattle ; the 
smaller-seeds are food for birds, and the larger for men. 
But some are preferred to others; as, the Festuca for 
Sheep; the Poa for Cows; the Puataris for Canary- 
birds and Linnets; the Avena for Horses; the SECALE, 
Horpeum, and Triticum for Man. ; 
Variety of Insects also derive their nourishment from 
orl as the Papilio mera, Pap. Aigeria, Pap. Galathea, 
ap. Jurtina, Pap. Cinzia, Phaleena quercifolia, Ph. Po- 
tatoria, Ph. culmella, Chrysomela Graminis, and several 
others, which will be mentioned under the different species. 
No part of Botany appeared to me more difficult than 
the study of Grasses; but the method of accurate dissec- 
‘tion and observation once adopted, no part was more cer- 
tain or more easy. However, when the great importance 
of the subject is considered, we cannot labour too much to 
fix the public attention to it, by: rendering it as easy as 
possible: for which reason the exceptions are carefully 
noted under such subdivision of the orders, and in the fol- 
ing plate an example is selected from each genus, taken 
from the Ameenitates Academica of Linneus. To gain a 
clear idea of the structure of the flowers, they must be 
#xamined just before the Anthers discharge their Pollen ; 
and by comparing them in that state with the figures in 
the plate, and with the generic description, the principal 
fficulties will soon be surmounted. The Botanic Mi- 
croscope will be found extremely useful in dissecting the 
minuter parts. : | ; 
Fw a ma ern wed 
Fic. 1. Antuoxan'rauM. a a husks of the calyx, d the 
' ~* “awn of the inner valve of the blossom, twisted 
and jointed. ¢ the straight awn of the outer 
valve ‘of the blossom. dd the two anthers. 
‘ee the two styles, meer 
i@’nus. The six petals, the three’stamens, 
“anthers ; the germens, the style, and the 
summit cloyen into three parts. 
Kk? 
2 « La 
Fie, 2. 
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