268 TETRADYNAMIA SILICTJLOSA. [CL. XV. 



About a 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. perfolidtum. 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 Gloucester- 

 shire: rare. Eng. Bot. vol. xxxiii. pi. 2354. Eng.Fl. vol. iii. p. 172. 



944. 



3. T. alpestre. 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 mountainous pastures, in the north of England : 

 rare. Glen Clova, Scotland. Eng. Bot. vol. ii. pi. 81. Eng. Fl. 

 vol. iii. p. 173. 945. 



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

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

 Stem branched, about a foot high : flowers small, white, co- 

 rymbose. Annual : flowers from March to November : grows in 

 cultivated ground and byroad-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. nudlcaulis. Naked-stalked Teesdalia. Root-leaves pinnati- 

 fid ; petals unequal. Stems several, the central one straight and 



leafless : flowers white. Annual : flowers in May and June : grows 

 in dry pastures 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 j valves boat- 



