I] BERM1 DA. 



4. ('. esthmo< ia!)!m \ p.23, PL XXVIII; 



( ollins, L909, p. 388. Shelly and Gravelly Bays, March, Her 

 Probably not uncommon, resembling a condensed form o I 



. but with the divisions mor< contracted at tl 



gradually increasing in diameter to the next forking. The utricles 

 are larger than in C. ipproaching the size in C. 



catum. 



Ayr ai.wili.i \ I >ecais 



1. Filament- distinctly moniliform. 1. A. oigricans. 



1. Filaments nearly or quite cylindrical. 2. A. longicaulis. 



1. A. nigricans Decaisne, L842, p. 96; Howe, 1907, p. 508, PL 

 XXVIII. figs. 8 25; Collins, L909, p. 390. Walsingham, F« 

 Harris Hay, April, Hervey; Inlet, Cooper's Island, Aug., Collins. 

 Very variable, from small, delicate plants to coarse, heavy and 

 unsightly ours. 



Var. fulva Howe in P. B.-A., No. 1480; Collins, 1909, p. 

 P. B.-A., No. 2171. Stouter, coarser, with less difference between 

 stipe and flabellum; color more yellowish than in the type. 



2. A. LONGK Iviitz.) Murray & Boodle, 1SS9, p. 70. 

 name only; Colli] 191; P. B.-A., No. 2170; Rhipilia longi- 



s Kiitzing, 1858, p. 13, PL XXVIII, 6g. 2. Walsingham, I' 

 Mangrove Bay, Feb., Harrington Sound, Nov., Inlet, Dec., Hervey; 

 Fairyland, Dec., Collin-. Growing in company with A. nigri< 

 from which it is frequently indistinguishable, except that the 

 ments of the latter show distinctly moniliform on microscopic exami- 

 nation, while those of A. longicaulis are nearly or quite cylindrical. 

 The name is a somewhat unfortunate result of following the rul< 

 botanical nomenclature; the ant I inomial used it for a 



different plant, A. nigricans. Rhipilia longicaulis, from which it 

 derr ific name, is according to the specimen the 



present species, while the description and figure given by Kiitzing 

 belong better to a third s] ida Murray & Boodle, 



arguments in favor of the name used here are found in Hoy 

 p. 509; those in favor of preferring A. Mazei Murray & Boodle in 

 Gepp, 1911, p. 27; a later summation will be found in Howe, 1911, p. 

 L33. 



PENN [LLl - I 



1 . 1 ' 

 1. Surface of stipe rough. 2. P. | 



