In 1/4YpSs slush: Sporangium spherical, 17.5-29 μm diam., with a broad apical discharge pore, 10-17.5 μm diam., inoperculate, urceolate after discharge. Sporangial wall bears 3-25 delicate, spinely hairs up to or exceeding 7.5-45 μm in length. Rhizoids extensively, arising from a spherical apophysis, 5-7.5 μm diam. Zoospores spherical, 3-4 μm diam., with a refractive globule, emerging in a vesicle surrounded by gelatinous material.On 1/4YpSs agar: Sporangium spherical or ovoid, 15.5-57.5 μm diam., largely, with a broad apical or subapical papilla, 17.5-30 μm diam., occasionally 2-4 papillae. Rhizoids arising from one to several main axes which from a spherical, fusiform, or irregular subsporangial apophysis, 7.5-12.5 μm diam. Zoospores spherical, 2.5-4 μm diam. Color of colony white to off-white.
Specimens：
Taiwan. Tainan: Kwantien, water-caltrop pond, 14 Jun 1998, CHNA 3701c; Taichung: Tungshih woodland, stream water, 24 July 1999, CHNA 4501c; Tainan:Tsengwen reservoir, 24 Jan 2000, CHNA 4703c; Pingtung: KaoPing River Weir, 23 Jun 2000,CHNA 4804a; Isolated with pine pollen from water.
Habitat：
Fresh water.
Distribution：
USA, Taiwan.
References：
Chen, SF. 2002.
Provided：
S. F. Chen
Note：
Thallus development belongs to Chytrium type. The rhizoidal system arising from a bulbous apophysis is different from a threadlike main axis of Rhizophydium chaetiferum. The long, spinely appendages on sporangial wall of this species is thicker than that on R. chaetiferum.
Phylum：Chytridiomycota >> Class： Chytridiomycetes >> Order： Chytridiales 
BCRC Number：