Gyinnosporangiiim. 231 



united at the apex; the lacinioe are joined at intervals by 

 short transverse trabeculte. Spores subglobose, finely verru- 

 cose, brown, 25-40 x 18-25/x. 



Teleiitospores — Mycelium perennial, causing fusiform swellings on 

 the branches of the host-plant. Spore-masses vernal, 

 cylindrical or clavate, generally compressed laterally, 8- 

 10 mm. high, at first blackish, firm, then red-brown and 

 gelatinous. Spores broadly fusiform or bipyriform, central 

 constriction almost none, yellowish brown or chestnut-brown, 

 with four germ-pores, 38-50 x 23-26/x. (Plate IV. figs, 

 li and 12.) 



Synonyms. 

 Winter in Rabh., " Krypt. Flor.," vol. i. p. 232. 

 Tremella sabincB. Dicks., "Plant. Crypt. Brit.," vol. i. p. 14; 



" Eng. Bot.," t. 710. With., vol. iv. p. 68. Purton, " Midi. Flor.," 



vols, ii., iii., No. 883. 



Podisoma sabince, Fries. Berk., "Eng. Flor.," vol. v. p. 362. 



Pers., "Disp. Meth.," t. ii. fig. i. "Eng. Bot.," t. 710. Berk., 



"Outl.," t. ii. fig. 4. Cooke, "Hdbk.," p. 510; " Micro. Fungi," 



4th edit., p. 214. 



Myxosporium colliailosum. Berk., "Out!.," p. 325. Sow., 



t. 409. 



Rcestelia cancellata, Reb. Berk., "Eng. Flor.," vol. v. p. 373. 



Sow., t. 409, 410. Cooke, " Hdbk.," p. 533 ; " Micro. Fungi,' 



4th edit., p. 193, t. ii. figs. 20, 21. 



Exsiccati. 

 Berk., 58, 107. Cooke, i. 332. Vize, "Micro. Fungi Brit.," 

 37, 55- 



yFlcidiospores on Pynis communis^ July to September. 

 Teleutospores or\ Juniperus sabina, April to May. 



Biology. — All the Gymnosporangia are easy of cultivation. If the 

 gelatinous masses be placed in water they swell up, and in twelve or 

 eighteen hours are covered by a golden-yellow powder, the promycehal 

 spores. These, diffused in water and applied to the proper host-plant, 

 are almost certain to produce JEcidiospores. The teleutospores in the 

 present species vary somewhat in shape, being often slightly contracted 

 at both ends so as to resemble two pyriform bodies joined at their 



