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Zopfs Alycetoeoa include many forms that do not come within
De Bary’s conception of the Mycetozoa as already defined. The
following illustrates the primary divisions as adopted in his
latest w'ork.’
A. Monadineae.
Mostly aquatic, partly parasites; resting cysts are usually
formed.
I. Monadineae azoosporeae.
Vampyrelleae ; Bursellineae ; Monocystaceae.
II. hlonadineae zoosporeae.
Pscudospm-eae ; Gyinnococcaceae ; Plasmodiophoreae.
B. E umtcetozoa.
Aerial. Never parasites ; plasmodia always present, generally
well developed ; fructification generally well developed.
I. SOEOPHOREAE.
Gnttulincae ; Pictyosteliaceae.
II. E ndosporeae.
a. Peritrieheae.
Clathroptychiaceac ; Oribrariaceae.
¡3. Pndotricheae.
* Stereonemeae.
Calcariaceae ; Amanrochaetaxeae.
* * Galonemeae.
Triehiaceae ; Arcyriaceae ; Betieidaricieeae ; Liceaceae ; Pcri-
chaenaceae.
III. E xosporeae.
In Kaunkier’s Myxomycetes Paniae ® the following classification
is proposed—
1 Die PilztMere oder Sclileimpilze (Sclienk’s llandhuch tier Potanik,
ill Enmjhl. der Naturwhssensehaften), 1884.
2 Botanisk Tiddskript, 17 Bind. (1888),
A. Capillitium absent.
I. H o m o d e em e a e .
Liceaceae. {Tubulina, Lindbladia.)
II. H e t e r o d e e m e a e .
Clathroptychaoeae. {Pnteridium, Clathroptychium)
Oribrariaceae. (Gribraria, Dictydium)
B. Capillitium. present.
III. CCELONEMEAB.
Arcyriaceae. (Perichaena, PacJinobolus, Arcyria, Cornuvia,
Lycogala)
Triehiaceae. (Hemiarcyria, Trichia)
IV. S t e r e o n em e a e .
Physaraoeae. (Padhamia, Physarum, Tilmadoche, Fuligo,
Leoearpus, Craterium)
Didymiaceae. (Chondrioderma, Lepidoderma, Didymium,
Spuinaria)
Stemonitaceae. (Lamproderma, Fnerthenevia, Ancyro-
phorus, Comatricha, Stemonitis, Brefeldia, Beticularia.)
The Myxomycetes are divided by Schröter’ into three principal
gi'oups as follows—
A. Mature fructification consisting of a mass of free spores.
* Saprophytes; the amoeboid bodies unite in masses, but
do not coalesce = A c r a s ie a e .
* * Parasitic in the interior of living cells, forming in
the knowm instances, a true plasmodmm = P h y t o -
m y x in e a e .
B. Spores formed in the interior of sporangia, or on the
outside of discoid or columnar fructifications = MYXOGASTRES.
At th e close of th e vegetable period, th e passage of th e motile
plasmodium into the stationary reproductive condition is abrupt,
and takes place as follows; th e surface of th e plasmodium
becomes elevated into one or usually many protuberances, the
original investment of th e plasmodium is continuous over these
‘ Englor u. Prantls’ Natiirl. Pflaiizenfam,, 36 Leif., von Y. Schröter, 1889.
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