FKESH-WA Ti: K ALU-^OF Till: I MTED STATES. 167 



Sp. quiiiina, i A., > Ki i /. 



Sp. satunite viridis, vulde liiliricata; nriieiilis Bterilibns diaroetro 1-6 plo longioribns ; articulis 

 frrtililms vi-l huud tuinidis vel nonnihil tumidis ; fascia unica ; spine anfractibus roodo den- 

 Biorilms, IIP lii laxioriliux, ni)iiiiun<|iiuin la.xissimis, plerumque 3, intcrdum 1 J-4 ; cytiodermate 

 cfllulic iiir.i,|iic line nee pmti-n.-io m-c replicato ; zygosporis aut globosia aut ovalibug aut 

 cyliudricis. 



J>i,im.\rt\<: M.-ril. 7 IS " rloff" - .0013" .0017" ; sports T U,,"-.0014". 



.S'I/H. S/'. i/iiinina, (AuAai>u)KtTZiNU. KABE.MIUHST, Flora Europ. Algarum, Sect. III. p. 



IM. 

 Jlnl,. Iii -uignis, propc Philadelphia. 



peep sin-en, MTV .slippery, sterile articles 1-fi times longer than broad; fertile joints scarcely 

 or not at all tumid ; chlorophyl filament single; turns of the spiral sometimes denser, some- 

 times laser, sometimes very lax, mostly 3 in number, sometimes 1^4 ; cytioderm neither 

 infolded nor protruded at the end ; zygospores polymorphous, globose, elliptical or cylindrical. 



/,' murks. This species is very abundant in the ditches around Philadelphia, 



i >i>c( i;illy in the "neck" below the city. I have found it fruiting profusely in the 



month of April. The spores vary very much in form, some of them being globose, 



others elliptic, and still others cylindrical, with obtusely rounded ends. All these 



t'onns may occur in a single filament. The spore cell also varies in the amount of 



;ilar^( inent. In many cases it preserves its cylindrical shape completely; in 



>llicr instances it is markedly swollen. 



1 IL,'S. 4 e, 4c, pi. 19, represent portions of sterile filaments of this species; figs. 

 ', 1 /', and 4 <Z, portions of fertile filaments. 



ff Fasciae spiralec dux vel plures. 

 ft Chlorophyl filaments two or many. 



fp. decimina, (MULLEB) Kxz. 



Sp. Minliilr viridis, labrica; articnlis sterilibus diamctro (0.00135" 0.00159") plcrnmque 

 dnplo-, quadruplo fere longioribns, nonnunquam subtcquulibus, fertilibus aut non aut modice 

 tmniilis; fasciis epiralibus plcrumque 2, latis, decussatis, rurius 1 vcl 3, aufractibus laxis 

 1-1 J; zygosporis aut ovalibus aut late cllipticis vel subglobosis. (II.) 



i/n. Sp. decimina, (MiJLLEB) KUTZINO. RABENHORST, Flora Europ. Algarum, Sect III. p. 

 242. 



Hab. Prope Philadelphia. 



I>irty green, slippery; sterile joints mostly from 2-4 times as long as broad (0.00135" 

 0.00159"), sometimes about as long as broad; fertile joints either moderately or not at all 

 swollen; spiral filaments mostly 2, broad, decussating, rarely 1-3, turus loose 1-U; zygo- 

 spores either oval, broadly elliptic, or snbglobose. 



Remarks. I find this species marked in one of my note-books as having been 

 found by myself near this city. I have no distinct recollection of seeing it, and, 

 lia\iii"; preserved neither figure, specimen, nor description, am forced to content 

 myself with copying the description of Prof. Rabcnhorst. 



Sp. diibia, KTZ. 



Sp. viridis in frncte dilute viridis; articnlis sterilibus cylindricis diametro 1^-2 J plo longioribns ; 

 fasciis ppiralibns 2-3, angustissimis, nodosis, anfractilnis la.xis 1-2 (=3-6); cytiodermate 

 utroque fine nee protcnso uec replicato, nonnihil crasso ; zygosporis polytnorphis, aut sub- 



