APRIL. 103 
greatly enlivening streams and ponds by its large bright 
yellow flowers and handsome leaves, which are heart-shaped 
and shining. It is not considered good for cattle, and they 
generally refuse it. In northern countries it is very abun- 
dant, and its expanding flowers give notice that the winter 
snows are disappearing. 
TETRADYNAMIA. SILICULOSA. 
THALAMIFLOR2. CRUCIFERZ. 
THLASPI. (SuepHern’s Purse.) 
Generic Character. Calyx of four egg-shaped spreading leaves. 
Petals egg-shaped, equal, undivided. Anthers heart-shaped, 
acute. Pouch compressed, roundish, or inversely heart-shaped, 
two-celled, valves keeled, generally bordered. 
Tutaspi (Capsella) BuRsA-PAstoris. Common Shepherd’s 
Purse. This common plant is well-known, and needs little 
description. The leaves at the root are divided and hairy, 
stem leaves lanceolate, all generally rough and toothed. Pouch 
inversely heart-shaped, and somewhat resembling an old- 
fashioned purse, whence its name. Stem branched. Flowers 
smalland white. It may be found, from March to November, 
in cultivated ground and road-sides. 
