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68
II. MUCOR Mich. Nov. Plant. Gen. p. 215.
Hyphae fertiles vegetatione definitae, sporangia uni-
moda gignentes, simplices. Rami copulativi s. sexuales recti.
III. SPINELLUS v. Tiegh. Nouv. Rech. Mucor. in Ann.
sc. nat. six. sér. tom. I (1875) p. 66.
Rami copulativi curvati, laeves. Hyphae inycelii
spi-nulosae. Caetera prioris.
Fam. II. SAPROLEGNIACEAE.
Organa reproductiva duplicis generis: 1) zoosporangia
s. zoogonidia, sexu carentia, in ramis mycelii propriis
(hyphis zoosporangiiferis) terminalia, aut sporaruni vicem
geren-tia, id est germinando tubum simplicem, primordium
mycelii novi, protrudentia, aut zoosporas gignentia; 2) organa
se-xualia: oogonia in ramis mycelii orta, terminalia vel
inter-stitialia, sphaeroidea, fecundatione peracta, oosporas
gene-rantia; antheridia in ramulis mycelii terminalia vel
inter-stitialia, e papilla aperta vel per tubum angustum,
membra-nam oogonii perforantem, aut protoplasma integrum aut
antherozoida, primordia oosporarum fecundantia, emittentia.
Subfam. 1. PERONOSPOREAE.
Zoosporangia seriatim superposita vel solitaria,
terminalia in ramis mycelii propriis, plerumqve septis omnino
de-stitutis, e epidermide plantae nutricis emergentibus vel
erum-pentibus, maturitate decidua. Zoosporae ciliis duabus
rau-nitae. Oogonia semper in parenchymate plantae hospitae
inclusa, subsphaeroidea, fecundatione peracta, oosporas
so-litarias generantia. Antheridia cellulas simplices sistentia,
irregulariter oblongatas, obovoideas, clavatas, solitarias,
oo-goniis arcte adpressas tubumqve angustum oogonii
membra-nam perforantem primordium oosporae fecundantem
emitten-tes. Antherozoida nulla. Oosporae endosporio crasso, liya-
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