TETRADYNAMIA., 
Mr. Prrcurorp.—Specimen from Mr. Lightfoot agreeing with 
that of Mr. Pitchford’s. Mr. Woo pwarp] 
Dr. Smith, in E. Bot. is inclined to think that Ray’s = 
should be referred to the O. major, and doubts whether M 
Pitchford’s specimen from Northreps be the same with either, a 
serving that it agrees better with the O. purpurea of Jacquin: 
but remarks also that the whole genus wants a thorough investi- 
gation, 
F———| 
CLASS XV. 
TETRADYNAMIA. 
SILICULOSA. 
1) Pouch not notched at the end. 
MCEN’CHIA. Pouch 5 ah crowned with the 
style: valves rather con 
DRA’BA. Pouch with ‘sae is valves: Style none. 
SUBULA’RIA. Pouch with half-egg-shaped valves : 
Style shorter than the pouch, 
MY’AGRUM. See Meenchia. 
BU’NIAS. Pouch deciduous; egg-oblong; prickly. 
CRAM’BE. Pouch deciduous; globular; like a dry berry. 
Filaments 4, long ones cloven at the end. 
I’SATIS. Pouch deciduous ; spear-shaped; with 1 seed. 
VEL’LA. Pouch with valves only half the length of the 
partition. 
{Cochlearia Coronopus. ] 
(2) Pouch notched at the end. 
VBERIS. Two outermost petals the largest. 
ee oes Pouch heart-sh 7 alves blunt; 
bulgi 
LEPYDIUM, Pouch heart-shaped : Valves sharply keeled. 
THLAS’PI. Pouch inversely heart-shaped; Valves (in 
some species) bordered ; keeled, 
549 
