ENDOPHYLLUM 
2. Endophyllum Sempervivi De Bary. 
Uredo Sempervivi A. et 5. Consp. p. 126. 
335 
Endophytlum Sempervivi De Bary, Morphol. p. 304 (see. Saccardo). 
Cooke, Handb. p. 546; Micr. Fung. p. 200. 
Plowr. Ured. p. 229. Sacc. Syll. vii. 767. 
Fischer, Ured. Schweiz, p. 436, f. 297. 
Hoffmann, Centralbl. f. Bakter. xxxii. 137, 
f. 1—14 and pl. i, ii. 
Spermogones. Scattered amongst the 
ecidia, roundish. 
Teleutospores. Sori rather large, amphi- 
genous, sunken in the leaf, ecidium-like, sur- 
Fig. 252. E. Sem- 
rounded by many layers of hyphae and by a _ pervivi. Sori on 
peridium, which opens by a pore at the summit 
Sempervivum mon- 
tanum (reduced). 
and finally becomes cup-shaped; spores bluntly 
polygonal or roundish, yellowish-brown, densely reticulate-ver- 
rucose, 2435 x 21—28 »; epispore 3—4 4 thick. 
On Sempervivum tectorum; also found 
on 8. calcareum, S. globiferum, S. montanum 
(Plowright), S. arachnoideum (Fischer) and 
others (Saecardo). Not common, Warwick- 
shire, Forden, Kew Gardens, etc. April— 
August. (Figs, 252, 253.) 
It has been proved by De Bary, Hoffinann 
and others that the basidiospores produced by the 
teleutospores infect the leaves, and from them arises 
a mycelium which perennates in the stem. It 
produces spermogones and teleutospores in the 
following spring. The affected leaves are more 
erect than normal ones, twice as long, narrower 
and yellowish at the base: infested plants should 
be burnt, so that they may not infect others. See 
the fuller account given on pp. 53-5. 
DISTRIBUTION : Europe. 
Fig. 253. E. Semper- 
vivi. Aicidio-teleu- 
tospore germinating 
(after Hoffmann). 
