196 CRYPTOGAMIA FUNGI. 



16. P. compositarum, capsules on a short thickish pellucid stalk, 

 ovate or pear-shaped, obtuse, brown, equally 2-celled, collected 

 into small almost black spots scattered on both surfaces of the leaf, 

 and encircled by the ruptured epidermis LINK ut sup. 73. Bot. 

 Gall ii. 890. P. Centaurece, GREV. Fl. Edin. 430. 



Hab. On the leaves of black knapweed, not common. Aut. 



17. P. umbelliferarum, capsules ovate or subglobular, obtuse at 

 both ends, not constricted at the septum, on a very short stalk, 

 collected into small circular almost black spots scattered widely 

 on the leaf. GREV. Fl. Edin. 430. 



Hab. On the leaves of umbelliferous plants. On the hem- 

 lock, but rather rare. 



18. P. Galii-cruciatcB, capsules shortly stalked, rather long, 

 pear-shaped, often constricted at the septum, collected into small 

 circular scattered blackish-brown spots Bot. Gall. ii. 890. P. 

 Valantia, GREV. FL Edin. 432. 



Hab. On leaves of the cross-wort, rare. Aut. 



19. P. Calthce, capsules on a short stalk, oblong or pear-shaped, 

 very obtuse, contracted at the septum, collected into small scatter- 

 ed dark brown spots LINK in WILLD. vi. ii. 79. Bot. Gall. ii. 

 891. 



Hab. On the leaves of marsh marygold, rare. Coldingham 

 Moor. 



20. P. Viola, capsules very shortly stalked, ovate, obtuse, col- 

 lected into small scattered blackish-brown spots. GREV. Fl. Edin. 

 432. 



Hab. On the leaves of the dog violet. 

 Resembles the uredo of the same plant, but is much rarer. 



21. P. variabilis, capsules nearly sessile, ovate, obtuse, collected 

 into small scattered circular or oblong dark brown spots. GREV. 

 Crypt. Fl. t. 75; Fl. Edin. 431. 



Hab. On the leaves of dandelion. Aut. 



Receives its specific name from the variableness of the cap- 

 sules in their shape, as is well represented in GREVILLE'S 



