XXX 
LINN.EAN SYNOPSIS OF GENERA. 
Class XXL MONGECIA. 
Order I. MONANDRIA. 
[Stam. 1.] 
280. Euphorbia. luvoliicre bellsliaped, inclosing numerous 
male 11. and 1 female flower. Cor. and cal. wanting. 
340. Arum. Sjiath of 1 sheathing leaf, inclosing numerous 
female fl. and numerous male fl. above them. Cal. and 
cor. wanting. 
118. Callitriche. Bracts 2 petaloid, or 0. Involucre, spath, 
cal. and cor. wanting. 
346. Zannichellia. Involucre 0. Male fl. without cal. or cor. 
Fern. fl. with a perianth of 1 leaf. Nuts 4, stalked. 
Stigma peltate. 
^346. ZosTERA. Fl. aggregate in 2 rows on one side of a spadix. 
Spath ending in a leaf. 
Order II. DIANDRIA. 
[Callitriche, N. 0. 31. Carex, N. O. 90.) 
Order III. TRIANDRIA. 
339. Typha. Spikes male and female, cj'hndi’ical. Ovary sur- 
rounded with bristles. Perianth 0. 
3.39. Sparganium. Spikes male and female, globose. Perianth 
single, 3-leaved. 
355. Carex. Fl. in 1 or more imbricated scaly spikes. Pe- 
rianth 0. Perigone urceolate. 
.354. Kobresia. Fl. in a compound spike. Perianth and 
perigone 0. 
Order IV. TETRANDRIA. 
263. Littorella. Cor. of male fl. wdth a cyhndrical tube and 
4-parted limb. Stam. verj^ long. 
280. Buxus. Cor. of male fl. of 2 petals, fern, of 3 pet. Caps, 
with 3 beaks. 
284. Crtica. Perianth 4-leaved. Perigone 2-leaved. Stam. 
equalling the perianth. 
300. Alnus. Fl. in imbricated catkins. Scales of male fl. 3- 
lobed, 3-flowered. Perianth 4-fid. Perigone 0. 
