224 MICROSCOPIC FUNGI. 



oval, minute, scattered, on both surfaces ; epidermis soon rup- 

 tured ; spores subglobose, brownish.— On Artemisia vulgaris, &c. 

 Not common. 



Trichobasis Labiatarum, Lev. Mist Rust; spots 

 yellowish and brown; sori subrotund, scattered, subaggregate, 

 on the under surface ; epidermis ruptured ; spores subglobose, 

 brown. — On various Labiata. August to September. Common. 

 Uredo spores of Puccinia Mentha. 



Trichobasis Lychnideariim, Lev. Chickweed Rust ; 

 spots pallid yellowish ; sori subrotund, plane, scattered on the 

 under surface, cinnamon, at length brownish ; epidermis ruptured ; 

 spores globoso-ovoid, sessile, or shortly pedicellate. — On Caryo- 

 phyllacea. Summer and Autumn. Uredo spores of Puccinia 

 Lychnidearum. 



Trichobasis Clinopodii, DC. Spots yellowish ; sori 

 roundish, scattered over the under surface, soon ruptured aud 

 pulverulent, cinnamon ; spores subglobose or oval, slightly 

 granular. — On Clinopodium. Condition of Puccinia Clinopodii. 



Trichobasis Cirsii, Lasch. Sori small, scattered, flattened ; 

 spores globose, cinnamon, or brownish, smooth. — On Thistles. 

 Condition of Puccinia Cirsii. 



Trichobasis Lapsanse, Fckl. Sori orbicular or confluent, 

 cinnamon-brown, pulverulent,; spores small, globose, rough, 

 yellow-brown.— On leaves of Lapsana communis. Condition of 

 Puccinia Lapsana. 



Trichobasis Hieracii, Schum. Sori collected in purple 

 spots, then erumpent and girt by the ruptured epidermis ; spoies 

 rounded or ovate, rough, brown.— On Hieracium and Crepis. 

 Condition of Puccinia Hieracii. 



Trichobasis Apii, Wallr. Sori irregular, cinnamon, 

 girt by the epidermis ; spores ovate, pale cinnamon, smooth.— 

 On leaves of Celery. Condition of Puccinia Apii. 



Trichobasis Angelicse, Schum. Sori subovate, crowded 

 or confluent ; spores subovate.— On leaves of Angelica sylvestris. 

 Condition of Puccinia Angelica. 



Trichobasis Pimpinellse, Strauss. Spots none ; sori 

 roundish, scattered over both surfaces ; spores ovate. On leaves 

 of Pimpinella. Condition of Puccinia Pimpinella. 



Trichobasis Cynapii, DC. Sori scattered, rounded or 



