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54
ciliato pervio. Stylosporae cuneato-oblongatae, basi
trunca-tae, echinatae, brevissime pedicellatae, longit. 30—39 nimm.,
crassit. 16—19 mmm. Paraphyses apice obovoideae, inferne
attenuatae, laeves, byalinae.
III. Sori hypophylli, innati, convexo-plani, initio
ple-riqve lineis rectis (venulis matricis) limitati, per biemem
in-fuscati vel fusco-nigrescentes. Teleutosporae
cuneato-oblongatae, laeves, byalinae, longit. 30—50 mmm., crassit. 13—16
mmm. Sporidia spbaeroidea, flava.
Syn. II. Uredo popidina ß Pers. Syn. Fung. p. 219.
Ur-longicapsula ß betulina De C. Flor. Franc. p. 233.
III. Sclerotium betulinum Fr. Syst. myc. II, p. 262.
Me-lampsora betulina Tul. in Ann. sc. nat. IV ser. tom. II, 1854, p.
97, t. 7, f. 8—9 et t. 8, f. 11 — 12.
Exsicc. Karst. Fung. Fenn. 592 (II) et 694 (form:
Betn-lae nanae).
Hab. In foliis Belulae albae et B. nanae in tota
Fen-nia et Lapponia vulgaris nascitur, II aestate et autumno,
III autumno-vei’e. Fruetus ultiinos, sporidia dictos, vere pro
conditione aeris edit.
3. M. salicina Fr. Summ Veg. Scand. p. 482. Lév.
in Ann, sc. nat. t. VIII (1847), VIII, p. 375.
II. Sori amphigeni, sparsi vel subgregarii, rotundati,
flavi, subaurantii vel cineracei, pseudosporangio inconspicuo.
Stylosporae ovoideo-sphaeroideae, echinatae, pedicello aeqvali,
gracili, longo vel abbreviato praeditae, diam. 16 — 19 mmm.
Paraphyses capitatae seu rarius obovato-claviformes.
III. Sori vulgo epiphylli, sparsi vel aggregati, alii
exi-gui, rotundati, alii majores, varii, primo sordide vel
fusco-lutei, mox fusci, tandem subnigricantes. Teleutosporae
ob-longatae, 5—6-goni, episporio dilute fusoo, protoplasma ru-
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