CRTTCIFEROUS TRIBE 



19 



received from having been " formerly used in the Mithridate confpc- 

 tion, an elaborate hodge-podge now laid aside." — Sir E. J. Smith. 

 The flowers are white, and very small in comparison with tiie 

 pouches. — Fl. all the summer. Annual. 



2. T. perjvUatuin (Pcrioliatc Fcimy Cress). — Pouch inversely 

 heart-shaped, not so large as in the last, and with smaller wings ; 

 style shorter than the notch of the pouch ; seeds 3-4 in a cell, 

 smooth ; stem-leaves oblong, heart-shaped at the base, clasping 

 the stem ; height up to 6 inches. Limestone pastures in Oxford- 

 shire and Gloucestershire, but rare. Flower 

 wliite. — Fl. April, May. Annual. 



3. T. alpestre (Alpine Penny Cress). — Pouch 

 inversely heart-shaped ; style longer than the 

 broad notch of the pouch ; seeds numerous ; 

 stem-leaves narrow and clasping the stem ; str/rri 

 simple, about 6 inches high ; fowiers white, 

 rather larger than in the two foregoing. Moun- 

 tainous limestone pastures in the north of Eng- 

 land, raie. — Fl. June, J^l5^ Perennial. 



2. Capsell.4 (Shepherd's Purse) 



Capsell.\ Burs,\ I. C. bursa Pastoris (Common Shepherd's 



Pastokis {Common Purse).— The only species. A common weed. 



Shepherd's Purse) ^^ ,,g f^^^^^j -^ ^^|^^,^^^(. ^^.^^^ p,^,.^ ^f ^j^^ ^^,^j_j^, 



varying considerably in luxuriance, according 

 to soil and situation. In stony ground it 

 grows only a few inches high, but in rich soil 

 as much as 2 feet. The whole plant is rnore 

 or less rough with hairs ; the root-leaves are 

 pinnatifid, those on the stem oblong, toothed, 

 and arrow-shaped at the base, — Fl. nearly the 

 whole year round. Annual. 



3. HUTCHINSIA 



I. H. fetreea (Rock Hutchinsia). — The only 

 British species. A pretty little plant, 2-3 

 inches high, growing on limestone rocks in 

 several parts of England and Wales. The 

 leaves are pinnate ; flowers minute, petals 

 white, scarcely longer than the calyx ; the 

 seeds 2 in each cell. — Fl. March, April. Annual. 



Hutchinsia Petr.ea 

 {Rock Hutchinsia) 



