OX CYPERACE/E 



241 



had the same experience at Bremen. Bubak experimentally demonstrated 

 the truth of the suspicion (CEsterr. Bot. Zeitschr. 1898, xlviii. 14). 



The teleutospores were first found, in this country, on Scirpus lacustris 

 floating down the river Ouse at King's Lynn, Nov. 17, 1877. The plants 

 had evidently been cut on that river or one of its tributaries, but it 

 was not till 1894 that the teleutospores were found in situ near Earith, 

 Huntingdonshire ; and a visit to the Old Bedford Level at that place, 

 in July, 1895, revealed the secidia in abundance. See Gard. Chron. (I. c). 



Distribution : Europe generally ; a similar secidium on 

 Limnanthemum indicum has been found in Queensland, but no 

 teleutospores have yet been found there. 



Cooke, Handb. 



108. Puccinia Caricis Reb. 



JEcidi'im Urticae Sebum. Enum. PI. Sail. ii. 222. 



p. 541 ; Micr. Fung. p. 197, pi. 1, f. 10, 11. 

 Credo Caricis Schum. 1. c. p. 231. 



Triehobasis caricina Berk. ; Cooke, Micr. Fung. p. 223, pi. 8, f. 170 — 1. 

 Puccinia Caricis Rebent. Fl. Neom. p. 356. Plowr. Ured. p. 169. 



Sacc. Syll. vii. 626. Sydow, Monogr. i. 648. Fischer, Ured. 



Schweiz, p. 265, f. 201. McAlpine, Rusts of Australia, p. 133, 



f. 29, 30. 

 P. striola Link, Sp. PL p. 67. Cooke, Handb. p. 493 ; *Micr. Fung. 



p. 203 p.p. 



Spermugones. Epiphyllous, in small clusters, honey-coloured. 



sEcidiospores. /Ecidia hypophyllous or occasionally amphi- 

 genous, often on the petioles and 

 stems, on reddish, yellow or pur- 

 plish spots, in dense clusters of 

 various sizes which are often very 

 large and cause great swelling 

 and distortion on the stems, cup- 

 shaped, with torn white recurved 

 margin; spores verruculose, orange, 

 16—26x12—20^. 



Uredospores. Sori amphige- 



llOUS, generally hypophyllous, scat- Fig. 186. P. Caricis. a, teleuto- 

 i i , ii i spore: b, upper cell germinating ; 



tered, oblong, about h mm. long, c , basidiospores germinating. 



pale-brown ; spores subglobose to 



oval, echinulate, yellow-brown, 21 — 30x15 — 22 /u,, with three 



(rarely four) germ-pores. 



<i. u. 



1G 



