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74
rae fasciculati, humiles, in apicem desinentes aut simplicem,
subulatuni aut semel bisve breviter bifurcatum, rarissime
tri-furcatum, sub apice ramis 1—3—4 muniti, horizontaliter
pa-tentibus, semel, bis terve trifurcatis. Rami primi
ordi-nis plerumqve brevissimi, rarius elongati, ultimi e basi
lata subulati, patentes, recti, raro subflexuosi. Zoosporangia
subgloboso-ovoidea, magnitudine valde inaeqvalia, apice
papilla obtusissima vix prominente munita. Oogonia
irregula-riter subglobosa, byalina vel pallide fuscescentia,
rigidius-cula. Oosporae sphaeroideae, laeves vel subrugosae, pallide
luteo-fuscae, majusculae.
Syn. Botrytis nivea Ung. Exanth. p. 171, t. II.
Exsicc. Karst. Fung. Fcnn. 685. v. Thum. Fung. austr. 111.
Hab. Ad folia viva Uinbelliferarum variarum,
praeci-pue Aegopodii Podagrariae, Angelicae sylvestris et Anlhrisci
sylvestris in Fennia australi et media (Wasa: ipse), jove
fa-vente, sat freqvens.
2. P. pusi 11 a De B. Rech. s. le dev. Per. in Ann.
Sc. nat. 1863, ser. IV, t. XX et in Hedw. 1864, N:o 9, p. 132.
Mycellii hyphae validae, saepe varicosae et torulosae.
Haustoria numerosa, vesiculiformia, obovata. Stipites
zoo-sporangiiferi numerosissimi, plerumqve 10—20 in
fascicu-lum coaliti, e stomatibus emergentes, singuli breves (0,07—
0,1 mm. alti), summo apice semel bisve dichotomi, raro
tri-cliotomi, saepius pseudo-trichotomi, ramo primario altero
bi-furco altero simplici. Rami omnes brevissimi (0,011—0,01
mm. longi), erecto-patentes, secundarii rarissime interum
bi-furcati, ultimi sursum attenuati, conidiis delapsis truncati.
Zoosporangia ovoidea vel obovoidea, valde inaeqvalia,
qvan-doqve gigantea (ad 40 mmm. longa), apice papillata.
Oogonia ignota.
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