198 MICEOSOOPIC PTJNGI. 



Var. a. Taraxaei, Grev.; clusters small, scattered.— On leaves 

 of the Dandelion. Jnne to July. 



Var. b. Prenanthis, Pers.; spots circular or irregular, purplish; 

 subiculum inorassated. — On leaves of Hawkweed {Eieracium 

 paludosum). Summer. 



Var. e. Tussilaginis, Pers.; clusters round, on a thickened base; 

 peridia circinating. — On the under surface of leaves of Coltsfoot 

 and Butterbur. Common. Autumn. 



Var. d. 3acohcB(B, Grev.; pustular, soon becoDoing agglomerated, 

 numerous, depressed ; peridia splitting into short, brittle, yellow- 

 ish-white teeth, — On leaves of Senecio Jacobaa and Sonchvt 

 arvensis. Jnne to August. 



Var. e. Lapsani, Part. ; spots purplish, irregular^ confluent, 

 on both sides of the leaves ; peridia amphigenous, in irregular 

 patches or scattered, not prominent, teeth numerous, minute, 

 reflexed ; spores yellow, oval. — On both surfaces of the leaves 

 of Lapsana communis. April. Not uncommon. Said to be a 

 condition of Puccinia Lapsants and other species. 



.ffieidium Saniculse, Carm. Santcle GLusTBa-Cups ; 

 spots purplish, slightly mcrassated, small, scattered, roundish; 

 peridia in small ciroinate clusters, hypogenous, and on the 

 petioles, at first hemispherical, at length open, margin with from 

 4 to 6 spreading lobes ; spores yellowish, elliptical.— On the 

 under surface of the leaves and on the petioles of Sanicula 

 Europtea. Not uncommon. May and June. Said to be a con- 

 dition of Pticrima Sdniculee. 



JScidiimi Violae, Schum. Violet Clustee-Cups ; spots 

 yellowish ; peridia in irregular heaps, seriate and scattered ; 

 spores orange, at length brown. — On leaves, petioles, and sepals 

 01 Violets. Common. May and June. Said to he a condition 

 of Puccinia molarum. 



JEcidium Poterii, Cooke. Btjbnet Cltjster-Cttps ; spots 

 obliterated, clusters subrotund or elongated ; peridia hypogenous 

 and on the petioles, circinating or scattered, immersed, margin 

 irregularly fringed with numerous minute toet!], soon falling 

 away; spores yellowish, oval. — On the under surface of the 

 leaflets and on ftie petioles of Po^enam Szw^Kiwria. Rare. May 

 and June. Dartford Brent, Kent. 



.ffloidium Parnassise, Grav. Paenassia Clttstek-Cups ; 

 hypophyllous; spots pallid; peridia in subrotund patches, irregu- 

 larly disposed, tawny-yellow, between urceolate and concave ; the 

 margin thick and nearly entire ; spores pallid. Duby. Bot. Gall. 



