Phylum:Chytridiomycota >> Class: Chytridiomycetes >>  Order: Chytridiales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Rhizidium windermerense

Rhizidium windermerense Canter, Ann. Bot. London (N. S.) 14:268. 1950.

 Description: On pine pollen: Sporangium epibiotic or interbiotic, ovate or pyriform, 23.3-40 O 33.3-73.3 μm. On 1/4YpSs agar: Sporangium ovate or pyriform, 13.8-17.5 1 112.5-120 μm; with one, occasionally two, apical or subapical gelatinous papillae, 5-37.5 μm diam. Rhizoids arise from a strong, long or several branched main axis. Small sporangia contain four to five zoospores. Zoospore globose, 5-7.5 μm diam., emerging in a hyaline vesicle, simultaneously motile before swimming away. Resting spore spherical, about 20 μm diam.; with a large, subcentric oil globule; wall smooth, about 2.5 μm thick; formed by rhizoidal anastomosis of two thallus. Color of colony khaki.

Taiwan. Taipei: Botanical garden, water of pond, 9 May 1994, NTNU 402a. Isolated on pine pollen from water.

 Habitat: Fresh water.

Great Britain, Italy, Taiwan.


Chen, SF and Chien, CY. 1998; Karling, JS. 1977.


S. F. Chen

 Note: Although the main character for Rhizidium is the rhizoid that arises from a strong main axis, this critasion was not considered to be sharply defined by Karling (1977). However, the important charcter of R. windermerense is characterized by the resting spore formed by conjugation of the rhizoidal tips from two thalli.