MELAMPSORELLA 363 



and vain scanh extending over many years; it has been confirmed by 

 Tubeuf, Klebahn, and Bubak. The secidia of three other species, Melam- 

 psorella Symphyti, Pucciniastrumpustulatum and Calyptospora Goeppertiana, 

 which also live on the same host, do not cause any deformation of the 

 shoots, and can therefore be easily distinguished. 



DISTRIBUTION : Europe, North America. 



2. Melampsorella Symphyti Bubak. 



Uredo Symphyti DC. Encycl. viii. 232. Plowr. Ured. p. 255. Sacc. 



Syll. vii. 861. 

 Trichobasis Symphyti Lev. ; Cooke, Handb. p. 529. 

 Coleosporium Symphyti Fckl. Symb. Myc. p. 43. Cooke, Micr. Fung. 



p. 218. 

 M.'lampxorelhi Symphyti Bubak, Centralbl. f. Bakter. 2. xii. 423. 



Fischer, Ured. Schweiz, p. 523. 



[S 'per ■nwg ones. Chiefly hypophyllous, crowded, often spread 

 over the whole leaf, orange-yellow. 



JZcidiospores. iEcidia hypophyllous, in two rows parallel 

 to the mid-i'ib. not crowded, shortly 

 cylindrical | — f mm. high, opening at 

 the summit by a cleft, at length torn 

 to the base into 3 — 5 segments ; spores 

 orange, verrucose, 20 — 40 x 18 — 29 p.] 



Uredospores. Sori hypophyllous, 

 small, rounded, closely crowded, rich 

 golden-yellow, often spread over the Fig. 271. M. Symphyti. 

 whole leaf, at first covered' by the Jj^g* 68 ' ° n *" 



epidermis and a thin peridium, then 



pulverulent ; spores ovate or ellipsoid, finely verruculose, yellow, 

 28 — 35 x 21 — 28 /*, without evident germ-pores. 



[Teleutospores. Hypophyllous, developed within the epi- 

 dermal cells, forming large whitish or pinkish patches, many 

 crowded in each cell, pale-yellowish, smooth, 11 — 18x9 — 15 p.] 



[.Kcidia on leaves of Abies pectinata, May, June;] uredo- 

 [and teleutospores] on Symphytum officinale, rather uncommon, 

 May to September. (Fig. 271.) 



Only the uredospores have so far been recorded for Britain, but the 

 teleutospores would in all probability occur on the same plants at a later 

 date, while the rccidia could doubtless be found, if carefully looked for, in 



