206 MICROSCOPIC FUNGI. 



time covered with the epidermis, oblong, unequal ; protospores 

 oval, slightly constricted, dark-brown ; epispore minutely tubercu- 

 late; peduncles very short. — On Goats-beard {Tragopogon). 

 Puccinia Tragopogonis of Corda has smooth spores. 



Puccinia Compositarurn, Sch. Composite Brand; 

 spots obliterated or whitish; sori small, subrotund, generally 

 hypogenous, encircled with the ruptured epidermis: spores brown, 

 oval, scarcely constricted. — On the leaves of Centaurea, &c. 

 Autumn. Common. The Uredo spores are Trichobasis Cichora- 

 cearum. (Plate IV. figs. 67, 68.) 



Puccinia Discoidearum, Link. Southernwood Brand; 

 spots obliterated; sori subrotund, minute, surrounded by the 

 ruptured epidermis ; sporidia brown, oblong or ovoid, somewhat 

 rhomboidal, with both cells attenuated and triangular; peduncles 

 elongated. — On Artemisia maritima. Swanscombe Marshes. 1865. 

 The Uredo spores are Trichobasis Artemisia. 



Puccinia Syngenesiarum, Lk. Cltjstered-Thistle 

 Brand : spots obliterated; sori minute, collected in oval blackish- 

 brown, raised spots, covered with the epidermis; spores brown; 

 peduncles very short. — On the leaves of Thistles. Autumn. 

 Common. The Uredo spores are uncertain. (Plate IV. figs. 

 63, 64.) 



Puccinia glomerata, Grev. Ragwort Brand; spots 

 pale; sori roundish, depressed, often confluent; spores oblong, 

 very variable; peduncles short. — On leaves of Ragwort, Senecio 

 Jacobaa. iS T ot common. 



Puccinia Virgaureas, Lib. Golden-rod Brand; spots 

 orbicular, pallid, then yellowish ; sori blackish-brown, minute, 

 punctiform, shining, clustered, nearly stellate, convex ; sporidia 

 oblong, subcoi stricted, yellowish- brown above, attenuated and 

 yellowish-white below ; peduncles short. — On leaves of Solidago 

 virgaurea. Shere, Surrey. July and August. 



Puccinia Cirsii, Lasch. Scattered-Thistle Brand ; 

 Protospores : sori scattered, pulverulent, brown ; spores globose, 

 cinnamon-brown, granular, at length delicately roughened. Brand- 

 spores : sori scattered, dark-brown, epiphyllous, encircled by the 

 ruptured cuticle ; spores shortly pedicellate, obtuse, dark-brown. 

 On leaves of Cirsium. 



Puccinia Andersoni, B. and Br. Spots epiphyllous, or- 

 bicular, surrounded by a brown border; sori hypophyllous, 

 minute, crowded, almost concealed by the pubescence of the leaf; 



