. The British rust fungi (Uredinales), their biology and classification. Uredineae. ON JUNCACEyE 239 On Luzula caiiipestris, L. maxima, L. jnlosa. Uredospores, May—July; teleutospores, September—November. (Fig. 184.). Fig. 184. P. ohlongata. Teleutospores (one abnormal) and a mesospore; h, uredospores; all on same leaf of L. pilosa. The uredospores are said to be always smooth, more or less obovate, and often irregular. It is stated by Sydow that they can survive the winter. Fischer figures anomalous spores, of both kinds, including three- celled and one-celled teleutospores. Plowright's sugge
. The British rust fungi (Uredinales), their biology and classification. Uredineae. ON JUNCACEyE 239 On Luzula caiiipestris, L. maxima, L. jnlosa. Uredospores, May—July; teleutospores, September—November. (Fig. 184.). Fig. 184. P. ohlongata. Teleutospores (one abnormal) and a mesospore; h, uredospores; all on same leaf of L. pilosa. The uredospores are said to be always smooth, more or less obovate, and often irregular. It is stated by Sydow that they can survive the winter. Fischer figures anomalous spores, of both kinds, including three- celled and one-celled teleutospores. Plowright's suggestion that this is probably a heteroecious species has, so far, received not the slightest confirmation. The greatly thickened summit of the teleutospores is very striking ; they are produced in the old uredo-sori, especially towards the tip of the leaves, so that in a sorus which is producing uredospores a few young teleutospores may be found, and the fully-formed ones are surrounded by the numerous 2)ersistent uredospore-pedicels. It is, no doubt, very heterodox, but I cannot help expressing the opinion that P. oblongata is merely an abnormal development of P. obscura. On the same leaf of Liizula pilosa, if not in the same sorus, 1 have found almost all the various kinds of spores figured by Fischer under both species. Urcdo oblongata Grev. Scot. Crypt. Flor. pi. 12, doubtless includes this form, but his figure is P. Caricis. DiSTElBUTiON: Central and Northern Europe. 107. Puccinia Scirpi DC. ^cidmm Xt/mphoidis DC. Flor. fr. ii. 597 and vi. 93. Plowr. C4ard. Chron. 1895, xviii. 96, 135. Puccinia Scirpi DC. Flor. fr. ii. 223. Plowr. Ured. p. 191. Sacc. Syll. vii. 659. Sydow, Monogr. i. 688. Trans. Brit. Mj'c. Soc. i. 58. Fischer, Ured. Schweiz, p. 298, f. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original w
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