ON LILIACEA 235 
On Ornithogalum umbellatum. Rare; Lytham and near 
Carlisle (Rev. Hilderic Friend). March—May. (Fig. 181.) 
As usual, only spermogones and teleutospores are present on these 
specimens. Fischer records that he found the fungus on O. umbellatum in 
March and April in great plenty, with spermogones and teleutospores, but 
no ecidia ; the infested parts of the leaves were swollen, compact, and 
harder than the healthy portions. He suggests (Centralbl. f. Bakt. 2. xv. 
230) with great probability that the zxcidia with spermogones which are 
also found on Ornithogalum (Afcidium ornithogaleum Bubdk, Annal. Myc. 
ili, 222) belong to some heterecious species. The fungus on 0. umbellatum 
is a biologic race; it does not attack O. nutans, much less other allied 
species of Liliacez, such as Muscart and Hyacinthus, although P. Lilia- 
cearum is recorded on them. Fischer adds that the mycelium is not 
perennial, but infection takes place afresh each spring by the basidiospores 
of the overwintered teleutospores, from leaves lying on the ground. 
DIsTRIBUTION : Central Europe. 
104. Puccinia Porri Wint. 
Credo Porrt Sow. Engl. Fl. pl. 411. 
U. Alliorum DC. Flor. fr. vi. 82 p.p. Cooke, Handb. p. 528; Mier. 
Fung. p. 217 p.p. 
Uromyces Alliorum DC. ; Cooke, Handb. p. 518; Mier. Fung. p. 212. 
Plowr. Ured. p. 137 p.p. 
Puccinia Porrt Wint. Pilze, p. 200. Plowr. Ured. p. 148. Sacc. Syll. 
vii. 605. Sydow, Monogr. i. 610. Fischer, Ured. Schweiz, 
p. 80, f. 61. 
Uredospores. Sori amphigenous, on indeterminate pallid 
spots, scattered or more or less in 
rows, minute, at first covered by () 
the swollen epidermis, yellowish or 
reddish-yellow ; spores globose to 
ellipsoid, very delicately echinulate, 
yellowish, 20—30 p. 
Leleutospores. Sorlamphigenous 
or caulicolous, generally without 
spots, scattered, minute, oblong or fig 182, P. Porri. Telento- 
roundish, about 1 mm. wide, but spores and mesospore, on 4. 
: ‘ Schoenoprasum. 
sometimes confluent into larger 
patches, long covered by the lead-coloured epidermis, black- 
brown; spores oblong or clavate, rounded or rather truncate 
