- 8 7 - 



Sp. p. 714; Id. Tab. Phyc. XVI, t. 67. De Toni Syll Alg. IV. p. 

 1530. Fucus capillaris Huds. Turn. Hist. Fuel t. 31. Gigarlina 

 lubrica Lyngb. Hydroph. p. 45, t. 12 A. Gigartina capillaris 

 Lamour. Essai (Sec. Kiitz.) 



Fronds numerous from the same base, 10-20 cm high, very 

 weak, gelatinous, cylindrical, filiform, somewhat tubular, 11.5 mni - 

 thick, each rising with a single undivided stem, lower portion 

 sometimes naked or beset from base to summit with branches 

 rather loosely disposed on all sides in alternate, sometimes opposite 

 manner, 3-7 cm. long, the whole branches densely furnished with 

 a series of shorter branches similar to them in every respect, and 

 those again with simple, short, subulate ramuli ; the branches and 

 ramuli are all between erect and patent, slightly attenuated at 

 their bases, and remarkably acuminated at the apices. In the 

 growing portion of branch, cortical cells carry slender, one-celled, 

 hyaline, deciduous hairs. Cystocarps dot-like, densely scattered and 

 'mmersed beneath the cortical layer. Colour pinkish-red, soon turn- 

 ing to brick-red in decaying. Substance very tender, slippery, almost 

 gelatinous, and the frond breaks down soon in decaying into pieces. 



Formation of Cystocarps. Procarp is formed as a branch 

 of two-sidedly branching auxiliary cell-branch which is laterally- 

 supported on the side of an infracortical filament arising verticil- 

 lately trom the central axis. It consists of 3 or 4 cells, of which 

 hypogenal cell is larger and laterally elongated. Auxiliary cell is 

 prepared as a larger, roundish, intercalary cell beneath the curved 

 apex of auxiliary cell-branch. Spore-filaments are produced in a 

 paniculate manner either from fertilized and non-fused auxiliary 

 cell or from fused cell which results from the fusion of an auxi- 

 liary cell and sterile cells adjoining it. Even when auxiliary cell 



