Bulbochaete rectangularis

Bulbochaete rectangularis Wittr. Oefv. Sv. Vet.-
Akad. Forh. 27: 142. 1870.
? Bulbochaete ignota H. C. Wood, Fresh-w. Algae N. Am. 201. 1873.
Dioecious, nannandrous, gy nandrosporous ; oogonium ellipsoid, patent or more rarely erect, below terminal seta or androsporangium or more rarely vegetative cell; outer oosporewall longitudinally costate; androsporangia scattered or epigynous, 1-?; dwarf male near or occasionally on oogonium; antheridia exterior, 1-4; vegetative cell sub rectangular in section, 16-23 by 20-46 m; oogonium 32-39 by 45-63 M ; oospore 29-37 by 43-61 u; androsporangium 13-16 by 10-27 fx; dwarf male stipe 14-18 by 22-27 u; antheridium 8-10 by 5-7 u.
Type locality: Sweden.
T11 . Distribution: Massachusetts, Rhode Island, Connecticut, Pennsylvania, Ohio, Michigan, Illinois, Indiana, Oklahoma.
Plate 5 . /. 53.