GENERAL CLASSIEICATION OE PHYCOMYCETES.
GROUP X I.-PH Y C OM Y C E T E S , DE BARY.
A r r a n g e m e n t o f O r d e r s ( 5 ) .
Ilyphoe well developed—
56. M u c o r a c e æ —Threads producing spore sacs.
57. P e r o n o s p o r a c e æ — Threads often branched, hearing active or passive conidia.
58. E n t o m o p h t h o r a c e æ — Threads bearing conidia mostly on insects.
Hyphæ obsolete—
59. C h y t r i d i a c e æ — Spore sacs alone, without threads.
60. P r o t o m y c e t a c e æ —Spore sacs thick walled, slender threads soon disappearing.
O r d e r LYI.—M u c o r a c e æ , De B a r y .
Genera (5)—
389. Piloholus, Todc.
390. Mucor, Mich.
391. Phycomyces, Kunze.
392. Spiuellus, V. Tiegh.
393. Circinella, V. Tiegb.
O r d e r LV II.—P e r o n o s p o r a c e æ , D e B a r y .
Genera (4)—
394. Cystopiis, Lev.
395. Sclcrospora, Sehr.
Genus (1)—
398. Empusa, Cohu.
396. Plasmopara, Sehr.
O r d e r LVIII.—E n t o m o p h t h o r a c e æ , N o w a k .
O r d e r LIX .—C h y t r i d i a c e .(E , D e B a r y .
397. Perouospora, Corda.
Geuus (1)—
399. Synchytriura, De Bary.
O r d e r LX.—P r o t o m y c e t a c e æ , D e B a r y .
Genus (1)—
400. Protomyces, Unger.
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