SPECIES AND VARIETIES. 373 



** Flowers sessile. 

 f Calyx not inflated. 



T. pratense : stem erect, 1-2 feet high ; leaflets oval, emargi- 

 nate, the upper ones entire, apiculate ; flowers purplish, some- 

 times white, the heads ovate, dense, sessile ; calyx 10-nerved, 

 hairy. Purple Clover. Mountainous pastures, fields. Fl. 

 May to September. 



T. arvense : annual ; stem erect, or in a maritime form, 

 procumbent, finely hairy; leaflets linear-oblong ; flowers small, 

 whitish, almost concealed by the very hairy calyx, the heads 

 nearly cylindrical, stalked ; calyx 10-nerved, hairy. Hare's- 

 foot Trefoil. Sandy fields. Fl. July to September. 



ft Calyx with the upper lip inflated after flowering. 



T. fragiferum : stem creeping ; leaflets obovate, emarginate, 

 minutely serrate; flowers purplish-red, the heads globose, large, 

 remarkable when in fruit for their curious calyces ; peduncles 

 axillary longer than the leaves ; calyx of the fruit membranous 

 reticulated downy. Damp pastures. Fl. July to September. 



(16) Sedum. 



S. Telephium : stem erect, 12 feet high ; leaves large and 

 broad, oval-oblong, dentate, smooth, rounded at the base, and 

 sessile ; flowers purple, handsome, in dense corymbs. Orpine, 

 or Live-long. Hedge-banks on a gravelly soil. Fl. July to 

 September. 



(17) Parnassia. 



P. palustris : leaves mostly radical, cordate, stalked ; the 

 stem-leaves amplexicaul ; petals white, veined, with a short 

 claw; filaments of the petaloid scales 913; glands of the 

 scales yellow. Wet, boggy places. FL August to October. 



