118 
FUNGI. 
Pxsicc. Rab., Herb. Myc. Ed. 2, No. 787; Rab., Fung. Eur., 
No. 2062 ; Thumen, Fung. Austr., No. 849 ; Jack, Leiner, etc., 
No. 943 ; Ellis, N. Amer. Fung., N. 1064. 
Hab. On living leaves, petioles and stems of Meum atliaman - 
ticum and (Enanthe californica. 
Distrib. France ; Germany ; Austria ; United States. 
A very distinct species, characterized by the long, scattered 
spines on the teleutospores. So far as my observations go the 
spores are always three-celled, but the cells are often very un- 
equal in size, the basal cell more especially being frequently much 
smaller than the remainder. Uredospores are unknown in this 
species. 
Triphragmium clavellosum, Berk. (Figs 6 and 7). 
Teleutospore. Sori small, usually crowded in roundish patches, 
black, most frequently, but not always, confined to the under 
surface of the leaf ; spores 3-celled, more or less spherical, some- 
times slightly obcordate, cells either radiate, one basal, or the 
three cells laterally arranged, and separated by two more or less 
vertical septa, 26-38 p diameter; epispore brown, ornamented with 
scattered, cylindrical, pale spines, 5-7 p long, furnished at the 
apex with 2-3 minute, more or less recurved, spines ; pedicel 40- 
50 x 6-7 p, hyaline. 
Triphragmium clavellosum , Berk., Gard. Chron., 1857 ; N. 
Amer. Fungi, No. 558, in Grev., Vol. viii., p. 55 ; Ceylon Fungi, 
No. 823, in Journ. Linn. Soc., Vol. xlv., p. 92 ; Sacc. Syll., Vol. 
vii., Pt. ii., No. 2685. 
Triphragmium Thwaitesii. B. Sf Br., Ceylon Fungi, No. 822, in 
Journ Linn. Soc., Vol. xlv., p. 92; Sacc. Syll., Vol. vii., Part n., No. 
2686. 
Exsicc . Rab.-Wint. Fungi Eur., No. 2918. 
Hab. On living leaves of Aralia nudicaulis , Hedera stellata , 
H . vahlii , Paratropha, and on some undefined species belonging to 
the Amygdaleacese. 
Distrib. United States ; Ceylon. 
Triphragmium Thwaitesii, B. & Br., is identical with T. clavel- 
losum, Berk., and I am not at all certain as to whether the latter 
is specifically distinct from T. echinatum , Lev. ; the extreme forms 
appear different, but there are connecting links, as the specimens 
in Rab.-Wint. Fung. Eur., No. 2918, communicated by Professor 
Farlow, and collected in New Hampshire, United States ; these 
are parasitic on Aralia nudicaulis, and the general habit is exactly 
that of T. clavellosum , B., but the spores closely resemble those of 
T. echinatum , being brown, and ornamented with scattered, 
elongated brown spines, very slightly or not all divided at the 
apex, whereas the most usual form of spore in T. clavellosum the 
spines are paler than the epispore, 5-7 p long, and with 2-3 minute, 
recurved spinules at the apex, a point of no great importance in all 
probability, as I have already shown that the epispore ornamenta- 
