ON CARYOPHYLLACE.E 



111 



first generation, and their mycelium can produce either aecidiospores or 

 teleutospores or both. No spermogones seem to be known. 



The secidium requires to be carefully distinguished from that of 

 Puccinia Behenis (P. Silenes) (q.v.), which is much rarer and does not 

 extend throughout the season. 



Distribution : Europe generally. 



23. Uromyces sparsus Lev. 



Uromyces sparsus Lev. Ann. Sci. Nat. ser. 3, viii. 369. Cooke, Handb. 

 1>. 519 ; Micr. Fung. p. 214. Plowr. Ured. p. 136. Sacc. Syll. 

 vii. 545. Sydow, Monogr. ii. 221. 



Uredospores. Sori amphigenous and on the stems, on pallid 

 spots, scattered, roundish, ^ — 1 mm. 

 diam., convex, covered for a considerable 

 time by the epidermis, which at length 

 splits and surrounds them, then pulveru- 

 lent, pallid-cinnamon ; spores globose to 

 oblong, faintly echinulate, brownish, 

 18—28 x 15—22^. 



Teleutospores. Sori similar, but 

 darker; spores subglobose to oblong, 

 rounded above where they are slightly 

 thickened (up to 4//,) and darker, gene- 

 rally tapering downwards, smooth, brown, 

 22 — 32x14— 21 /u,; pedicels persistent, 

 thick, as much as 60 \x long, brownish at 

 the apex. 



On Spergularia rubra (Alsine rubra). 

 rare ; I have seen no British specimens. (Fig. 63.) 



Distribution : Mid- western Europe. 



24. Uromyces Chenopodii Schrot. 



Uredo Chenopodii Duby, Bot. Gall. ii. 899. 



jEcidium Suaedae Thiim. Fung. iEgypt. iii. no. 53. 



JEcidium Chenopodii, in Gard. Chron. (1895), xviii. 135. 



Uromyces Chenopodii Schrot. in Kunz. Fung. Sel. no. 214. Plbwright 



in Trans. Brit. Myc. Soc. i. 56. Sacc. Syll. vii. 548. Sydow, 



Monogr. ii. 233. 



Fig. 63. U. sparsus. 

 Teleutospores on 

 Spergularia salina 



(foreign, J. Kunze, 

 Exsicc, no. 216) 



May — July. Very 



