THE FLOB \ OF N EBB t8E \. 



Vab— farlowii Wolle Freshw. Alg. (" s 142. L887. Diameter of filaments, 

 Ditches, etc., Lincoln. PI. XXII.. Fig. a 



Microspore abbreviata (Rabh.) LslGebh. Zur. Entwick Bin. Cont 17. L887 

 Conferva abort viata Rabh. Krypt. Flor. v. Sachs. 246. 



Thallus small, cespitose, tufted, green or ferruginous; articulations -1m. rt. 



cylindrical, not constricted al joints or swollen; cells 6 ? m diam. 



before division not exc ling 2 diameters; membrane thin, hyaline; 



chlorophyll homogeneous. 

 Lincoln. 



3. APHAXOCHAETE Bebth. Neb. Verz. Susswasseralg. 214. 1878 



Thallus epiphytic, composed of decumbent, articulate, branching filaments; 



many of the cells drawn out into a long, inarticulate, narrowly sheathed, 



soft awn. 

 Etymology: Greek wpavri^ indistinct, and }<>■■->,, hair 



Apbanochaete globosa (Nobdstedt) Wolle. Freshw. A.lg i' s. L19. 1887 



Her]> steiron globosum Nobdst. AJg. et. Char. Scand. ".!•; 1878. 



Involved in a colorless mucus, somewhal globose, filaments procumbent; 

 cells globose or occasionally ovate, each bearing on the back a sheathed 

 awn. Cells 12 1G fi in diam. 



On Nitella sp. from Cherry county. PL XVI I . Fig. "J. 



4. HERPOSTK1ROX Naeg. in Kuetz. Sp. Alg. 123. 1849. 



Epiphytic; thallus of articulate, irregularly branched, creeping aiaments 

 often forming a more or less irregular stratum; many of the cell 

 nished either on the side or at the apex with a more or less elonf 

 sheathless awn. 



Etymology: Greek epiru, creep, and <rn .<■■. rigid 



Herposteiron confervicolnm Naeg. 1 c, p. 124. 



Filaments branched, appressed, creeping; vegetative cells 8 16x6 11 tumid; 



awn dorsal, slender, hyaline, not discernibly articulate. 



On Mouyeutitt yaiitjlr.eu from Bellevue. VI. XXII . l-'i^. I. a. I., c. and •!. 



5. CHAETOPHORA Sohbank Hair. Flor. 17s:». 



Thallus gelatinous, elastic, sometimes coriaceous, round or Irregularly laoin 

 iate; filaments branched, arranged radiately, the cells of the Qlamenl 

 and of the primary branches of equal size; chlorophyll-contents in 

 bands; terminal cells short subulate or drawn out into a long, hyaline 



thread. 

 Etymology: Greek, {ami, hair, and , bear. 



Chaetophora pisiformis (Roth) a. Syst.27. 1824. 

 Eivularia pisiformis Rotb Cat. Hot. ill . 338 1806. 



Thallus globose, smooth, from the size of a mustard seed to that of a cherry, 

 bright green, shining, frequently aggregate lor confluent; filaments much 

 branched, radiating, articulations cylindrical; terminal cells awl ahaped 

 or drawn out into a soft, hyaline awn. 

 Attached to submerged stems and sticks in clear, standing water, probably 

 throughout the state. PL XIII.. Fig. •">. 



