TRIPHRAGMIUM 287 
It should be noted that there is an xcidium belonging to P. longissima, on 
species of Sedum, formerly called by mistake Endophyllum Sedi. This 
has been found on S. acre, and according to Mayor (Annal. Mycol. 1911, 
* ix. 841) on S. reflexum, but not, so far as I know, as yet in Britain. 
Further search in the Highlands will no doubt readily decide which of the 
two species occurs there. , 
TRIPHRAGMIUM Link. 
Auteecious. 
Spermogones subcuticular, flattish, without ostiolar fila- 
ments. Czomata indefinite, large, without paraphyses; uredo- 
sori small, definite, encircled by paraphyses; spores in both 
borne singly on pedicels: pores not evident. Teleuto-sori more 
or less definite; spores coloured, radiately 3-celled, more or less 
verrucose, with one pore in each cell, equidistant from the septa, 
Le. apical. 
It is most likely that the foreign species, usually classed 
with ours on account of the form of the teleutospores, are not 
closely allied. Spores of this particular shape are met with, 
abnormally, in other genera, as in several species of Puccinia, 
even in Puccinia graminis. Neither is this genus closely allied 
to Phragmidium; the teleutospores have no gelatinous outer 
coat, and the germ-pores are differently placed. 
Triphragmium Ulmarie Wint. 
redo Ulmariae Schum. Enum. PI. Sail. ii. 227. 
Uromyces Ulmariae Lév.; Cooke, Micr. Fung. p. 212, pl. 7, f. 147—8. 
Triphragmium Ulmariae Wint. Pilze, p. 225. Cooke, Handb. p. 492; 
Micr. Fung. p. 202, pl. 3, f. 47—9. Plowr. Ured. p. 218, pl. 4, f. 6. 
Sace. Syll. vii. 768. Fischer, Ured. Schweiz, p. 423, f. 293. 
Arthur, N. Amer. Fl. vii. 178. Sydow, Monogr. iii. 171. 
T. Filipendulae Pass. Nuov. Giorn. Bot. Ital. vii. 255. Cooke, 
Grevillea, xi. 15. Plowr. Ured. p, 219. Massee, in Grevillea, 
xxi. 115, Fischer, Ured. Schweiz, p. 425, f. 294. Sacc. Syll. vii. 
769. Sydow, Monogr, iii. 174. 
