1 90 The Scottish Naturalist. 



Obs. Reinke and Berthold (Zersetz. d. Kartoffel durch Pilze, 

 1879, p. 54), regard this as a form of fruit of S. stemonitis. 



3053. Gymnosporium arundinis Corda. Cke. Hbk. n° 1453. 

 On dead stems of Phragmites communis. May- 



East. — — — Dee — — — — 



West. — — — — — 



On coast between Cove and Aberdeen. J. W. H. Trail. 



3053. Phragmidium violaceum Schultz. 



Plowright, Science Gossip, 1883, p. 13 ; Trail, Scot. Nat., 

 1884 (Jan.), p. 123. 



JEcidio-spores in roundish or elongated scattered groups ; 

 spores in short chains, round or elliptical, echinulate, orange 

 yellow, 19-30 by 17-24. Uredo-spores in rather large, round- 

 ish, cushion-shaped, scattered (rarely confluent) sori ; spores 

 yellow, round, seldom elliptical or ovate, with a thick, coarsely 

 echinulate epispore, 17-32 by 17-24. Teleuto-spores 3-5- 

 (usually 4-) celled, 105 by 35, warty, tipped with a paler sub- 

 globose or conical papilla, stalk long, dilated at base. 

 (Scotch examples have spores 70-90 by 25-30. J. W. H. 

 Trail.) 



On the lower surface of leaves of brambles {Rubus fruit- 

 cosus) ; on the upper surface opposite each sorus there is 

 usually a red-brown spot. 

 East. — — Tay Dee — — — — 



West. Sol way — — — — — 



Common around Aberdeen, near Guthrie in Forfarshire, and 

 near Dumfries. This species is the only one that I have met 

 with on brambles in Scotland, in the above localities. J. W. 

 H. T. This is probably the form denoted by the name Ph. 

 bulbosum Schl. in Mycologia Scotica, n° 12 10, but perhaps 

 another species occurs with it — viz., Ph. Rubi Pers. The 

 latter species has been detected by Mr. Plowright in speci- 

 mens sent him from Yorkshire {Science Gossip, 1883, p. 12). 

 It differs from Ph. violaceum in the secidio-spores being 

 rounder (18-22 diam.), the uredo-spores narrower (17-32 by 

 12-20), and the teleuto-spores, in small round sori, being 3-8- 

 (usually 5-6-) celled ; slightly longer, and ending in a longer 

 cone or papilla. This form should be looked for in Scot- 

 land. 

 3055. Puccinia Thalictri Chev. {Flor. Paris, I. p. 417) ; Winter's 

 Pilze, Vol. 1. p. 177 ; Trail, Scot. Nat., 1884, p. 118. 



Spots none, but diseased parts paler green ; and whole 

 plant often tall, with narrowed leaf-segments ; sori hypophyl- 

 lous numerous, suborbicular, soon naked, dark brown ; spores 



