156 TRIANDRIA. TRIGYNIA, 
TILL#’A.. Rose 2. 2. Gertn. 112. Wg 
Cat. Cup with 3 divisions, flat. Segments egg-shaped, 
large. (Segments pointed, concave, approaching. Rose.): 
Buoss. Petals 3, egg-shaped, pointed, flat, mostly smaller 
than the cup. (Petals concave, Roser.) De 
Sram. Filaments 3, simple, shorter than the blossom. 
Anthers small. ; = rhea Seon 
Pist. Germens 3. Styles simple. Summits blunt: 
S. Vess. Capsules 3, oblong, tapering, reflected, as long: 
as the blossom, opening lengthwise upwards, 
SEEDS 2, egg-shaped. 
Ons. The T. muscosa being the only species yet found with 
us, and its structure leading’ us to this class, it is@laced here; 
but the three foreign species having 4 stamens, 4 pistils, and 4 
capsules, the genus is properly arranged by Linnzus, in the , 
class Tetrandria, order Tetragynia.. The fig. of Gzertner. re- 
ferred to above, and also by Schreber, is the T. muscosa in its 
cultivated state, when it bears flowers with 5 stamens, 5 pistils, 
and 5 capsules, . 
HOLO’STEUM. E. lot. 97. 
Car. Cup 5 leaves. Leafits -shaped, permanent. < 
Buoss. Petals 5, dee ly divided, blunt, equal. 
Stam. Filaments 3, hair-like, shorter than the blossom. 
Anthers roundish. 3 : 
Pist. Germen roundish, Styles 3, hair-like. Summits 
bluntish; ; 
S. Vess. Capsule 1 cell, rather cylindrical, opening at the 
2206p : | 
SEEDs several, roundish, 
Oss. H. umbellatum has petals with 2 or 3 tecth ; stamens 3 _ 
or 5; styles 3 or 4; capsule with 6 valves at its apex, (Schreb.) 
POLYCAR’PON, 
Car. Cup 5 leaves. Leafits egg-shaped, concave, keeled, 
ending in a sharp point, permanent. 1 gia 
Bross. Petals 5, very short, egg-shaped, notched at the 
end, alternate, permanent, ice 
Stam. Filaments 3, thread-shaped, half the length of the 
calyx. Anthers roundish, es 3 
Pist. Germen egg-shaped. Styles 3, very short. Sum- | oy 
mits blunt. 
S. Vess. Capsule egg-shaped, of 1 cell and 3 valves. 
SEEDS many, cg: -shaped, 
