268 TETRADYNAMIA SILICULO8A. [CL. XV. 



foot high, branched, smooth : flowers small, white, in dense corymbs : 

 pouches very large, with a deep notch. The seeds have a strong flavour 

 of garlic. Annual : flowers in June and July : grows in cultivated and 

 waste ground : frequent. Eng. Bot. vol. xxiv. pi. 1659. Eng. Fl. vol. iii. 

 p. 171. 943. 



2. T. perfolidtvm. Perfoliate Shepherd's-purse. Pouch inversely 

 heart-shaped; stem-leaves heart-shaped, smooth, somewhat toothed; 



style very short. Glaucous, smooth : stem branched : root-leaves 



stalked, egg-shaped : stem-leaves sessile, somewhat arrow-shaped : flowers 

 small, white, densely corymbose. Perennial : flowers in April and May : 

 grows in pastures, in Oxfordshire and Gloucestershire : rare. Eng. Bot. 

 vol. xxxiii. pi. 2354. Eng. Fl. vol. iii. p. 172. 944. 



3. T. alptstre. Alpine Shepherd' s-purse. Pouch inversely egg-shaped, 

 abrupt, with a prominent style ; stem-leaves arrow-shaped ; stems simple. 

 Smooth and glaucous: stems about six inches high, leafy: root- 

 leaves egg-shaped, in dense tufts : flowers small, white, with slightly 

 notched petals. Perennial : flowers in June and July : grows in moun- 

 tainous pastures, in the north of England: rare. GlenClova, Scotland. 

 Eng. Bot. vol.ii. pi. 81. Eng. FU vol. iii. p. 173. 945. 



4. T. Bursa-paftoris. Common Shepherd's-purse. Pouch inversely 



heart-shaped, somewhat triangular ; root-leaves pinnatifid, hairy. Stem 



branched, about a foot high : flowers small, white, corymbose. Annual: 

 flowers from March to November : grows in cultivated ground and by 

 road-sides: common. Eng. Bot. vol. xxi. pi. 1485. Eng. Fl. vol. iii. 

 p. 173. 946. 



8. TEESDA'LIA. TEESDALIA. 



Calyx of four egg-shaped, concave, nearly equal, spreading 

 leaves. Petals inversely egg-shaped, undivided, spreading, two 

 generally much larger. Filaments cylindrical, incurved, shorter 

 than the corolla, each bearing an egg-shaped scale on the inner 

 side ; anthers of two round lobes. Germen roundish, two-lobed ; 

 stigma globular, sessile. Pouch compressed, roundish, concave on 

 one side, bordered and cleft at the top, two-celled ; the valves boat- 

 like, with dilated keels; partition lance-shaped, narrow, contrary 

 to the greater diameter of the pouch. Seeds two in each cell, 

 roundish, compressed. Named after Mr. Teesdale, an English 

 botanist. 321. 



1. T. nndicaulis. Naked-stalked Teesdalia. Root-leaves pinnatifid ; 



petals unequal. Stems several, the central one straight and leafless : 



flowers white. Annual : flowers in May and June : grows in dry pas- 

 tures and gravelly places : very common in many parts of Scotland. 

 Eng. Bot. vol. v. pi. 327. Eng. Fl. vol. iii. p. 170. 947. 



9. IBE'RIS. CANDY-TUFT. 



Calyx of four egg-shaped, concave, equal, spreading leaves. 

 Petals inversely egg-shaped, undivided, unequal, with short claws. 

 Filaments awl-shaped, about the length of the calyx ; anthers 

 roundish. Germen round, compressed, notched ; style very short ; 

 stigma obtuse. Pouch egg-shaped, compressed, bordered, two- 

 celled, cleft into two acute lobes ; valves boat-shaped, with a di- 



