TETRADYNAMIA. SILIQUOSA, 295 
CARDAMINE. Tourn. 109. Geekin. 143. 
Cau. Cup 4 leaves; leafits egg-oblong, blunt, rather o 
- bulging, small, devia e : ae 
Boss. 4 petals, forming a cross. Petals oblon ~ego~ 
shaped, greatly expanded, ending in claws, which are 
vpn and twice as long as the cup. 
Stam. Filaments 6, awl-shaped, the 2 opposite ones twice 
as long as the cup, the other 4 still longer. Anthers 
small, heart-oblong, upright. ay skein 
Pisr. Germen slender, cylindrical, as long as the stamens, 
Style none. Summit a blunt knob, entire. _ 
S. Vess. Pod long, cylindrical, but compressed. Cedls 2. 
Valves 2, when they open rolling back in a spiral. 
SEEDS many, roundishe 
Oxs. One species is often found destitute of the 2 shorter 
stamens ; in some others the petals are wanting. In C. pefrea 
the valves open at the base, but do not roll back. Linn. 
SISYM’BRIUM., Tourn, 109. 
Car. Cup 4 leaves; leafits spear-strap-shaped, expanding, 
e ; Colqueet, deciduans- Sie 
Loss. 4 petals, forming a cross. Petals oblong, expand- 
ing, generally eae than the cup; claws very 
. minute. 5 aa 
Stam. Filaments 6, longer than the cup, the 2 opposite 
ones, somewhat shorter. Anthers simple. 
Pisr. Germen oblong, thread-shaped. Style very short. 
Summit blunt. : ae 
S. Vess. Pod long, crooked, bulging, cylindrical; celés 
2. Valves 2, nearly straight when open, rather shorter 
than the partition. 
SEEDs many, small. aie 
Oxs. S. Sophia has the petals shorter than the cup; and a 
very long and very slender pod. In 8. sylvestre and S$. amphi- 
bium, the pod is bulging, and yery short. Liwy. ’ 
