388 CHOMA 
On Arum triphyllum. In gardens, Melbury, 1863 (Rev. 
M. J. Berkeley), An introduced species, from North America. 
Czeoma Ari-italici Rud. 
Uredo Ari-ttatict Requien in Duby, Bot. Gall. ii. 899. 
Caeoma Ari Winter Pilze, p. 256. 
C. Ari-ttalicti Rud. in Linnea, iv. 512. Sacc. Syll. Fung. vii. 868. 
Trans. Brit. Myc. Soc. i. 60. 
Aicidiospores. Czomata hypophyllous, irregular, flattened, 
scattered or concentric, often confluent, without a peridium, 
orange-yellow ; spores round or elliptic, often somewhat angular, 
verrucose, orange, 15—30 x 15—20 p. 
On Arum maculatum. Very rare; near Salisbury, April, 
1897 (Mr E. J. Tatum). Found also in France and Germany. 
Requien’s description is as follows: Uredo hypophylla, maculis latis 
lutescenti-albidis sparsis, acervulis rufis, annulatim digestis, orbicularibus 
ovatisve, compactis, planis, epidermide rupta cinctis, sporidiis dilute rufis, 
grossis, pellucidis, subglobosis. 
Phragmidium tuberculatum J. Miiller. 
This species is recorded for Britain by Sydow (Monographia, 
ili. 114), on the ground that it was distributed by Baxter, 
“Stirp. Crypt. Oxon.” no. 37. There are specimens of this 
exsiccatum both at Kew and in the British Museum, but in 
both these the fungus on Rose-leaves is typical Ph. disciflorum, 
almost all the teleutospores having six septa, not 8—5 as in 
Ph. tuberculatum. The latter species, being widely distributed 
in Europe, is likely to be found here, but the evidence of its 
occurrence is at present insufficient. 
There is in Herb. Kew an ecidium on “Atriplex littoralis, 
Maldon, Essex, M. A. Irvine,” June Ist, 1864, Alcidia hypo- 
phyilous, covering' the whole leaf, densely crowded, shortly 
cylindrical, with a slightly torn margin. Of this nothing else 
seems to be known. 
