PROTEOMVXA 



89 



A. Myxoidea. — Flagella 1-3; zoospores separating at once. 



1. ZoospOBEAE. — Brood -cells escaping as flagellulae, even if they 



become amoeboid later. Gilicphrys Cienk. ; Pseudospora Cienk. 

 (Fig. 29). 



2. AzoospoREAB. — Cells never flagellate. Protomyxa Haeckel ; Plasnio- 



diophora Woronin ; Vampyrella Cienk. ; Seruinsporidium L. Pfeiffer. 



B. Catallaota. — Brood-cells of cyst on liberation adhering at the centre to 



form a spherical colony, multiflagellate ; afterwards separating, and 

 becoming amoeboid. Magosphaera Haeckel (marine).^ 



Plasmodiopliora infests the roots of Criicifers, causing the 

 disease known as " Hanburies," or " fingers and toes," in turnips, 

 etc. Serumsporidium dwells in the body cavity of small Crustacea. 



Fig. 29. — Pseudospora lindstedtii. 1, 2, Flagellate zoospores : 3, young amoebula, 

 with two contractile vacuoles, one being reconstituted by three minute formative 

 vacuoles ; 4, 5, au amoebula migrating to a fungus hypha through the wall 01 

 which it has sent a long pseudopodium ; 6, amoebula full-grown ; 7, 8, mature 

 cells rounded off, protruding a flagellum, before encysting ; 9, young sporocyst ; 

 10, the nucleus has divided into a brood of eight; 11-14, stages of formation of 

 zoospores, ev. Contractile vacuole ; e, mass of faecal granules ; fl, flagellum ; «, 

 nucleus, x about *J^. 



Many of this group were described by Cienkowsky under the 

 name of " Monadineae " (in Arch. Mikr. Anat. i. 18G5, p. 203). 

 Zopf has added more than anyone else since then to our know- 

 ledge. He monographed them under Cienkowsky's name, as a 

 subordinate group of the Myxomycetes, " Pilzthiere oder Schleim- 

 pilze," in Schenk's Handb. d. Bot. vol. iii. pt. ii. (1887). To 

 Lankester [Encyd. Brit., reprint 1891) we owe the name here 

 adopted. Zopf has successfully pursued their study in recent 



^ Most of Haeckel's Monera, described as non-nucleate, belong here. Several 

 have been proved to be nucleate, and to be rightly placed here ; and all require 

 renewed study. 



