60 ECTOCARPUS. 



7. E. crinitus, Carm. ; filaments decumbent, forming ex- 

 tensive strata, sparingly branched ; the branches sub-simple, 

 distant, elongated ; spores globose, scattered, sessile. Hook. 

 Br. Fl. ii. p. 326. 



Muddy sea shores. Appin, Capt. Carmichael. Watermouth, Devonshire, 

 Mrs. Griffiths. Spreading over the mud in " extensive fleeces of a bright 

 bay colour." Filaments about two inches long, with long, sub-simple, 

 distant branches. Spores rare. When dry it has a slight gloss, and the 

 colour changes to a dull, but rather pleasant green. Mrs. Griffiths' speci- 

 mens are not in fruit, but in other respects agree very closely with Capt. 

 Carmichael's. 



8. E. pusillus, Griff. ; filaments sub-simple or sparingly 

 branched, interwoven ; branches bearing a few short, flex- 

 uous fibres ; spores sessile, roundish-oblong, plentiful, often 

 two or three together. Wyatt, Alg. Damn. No. 303 ; E. 

 Bot. t. 2872 ; Harv. Phyc. Brit. t. cliii. 



Parasitical on Polysiphonia nigrescens and other Algae. Torquay, Mrs. 

 Griffiths. Land's End, Mr. Rolfs. " Like a tuft of pale brown wool. 

 Filaments long, slender, simple or slightly branched, set with a few short, 

 flexuous, divaricating fibres, tendril-like, which hold the filaments together." 

 Griff. Branches distant, naked. Spores plentifully scattered along the 

 threads, often two or three together or whorled. Joints twice as long as 

 broad. A smaller and more slender plant than E. crinitus ; the ramuli 

 different, and capsules more oblong. This comes near E. simpliciusculus 

 of Agardh, but is a larger plant. 



9. E. distortus, Carm. ; filaments very much branched, 

 matted together, dark brown, angularly bent ; branches 

 spreading at obtuse angles; ramuli divaricated or recurved, 

 obtuse, spine-like ; spores obovate, sessile or sub-sessile. 

 Hook. Br. FL ii. p. 326. 



OQ Zostera at Appin, Capt. Carmichael. Tufts 48 inches long, dense, 

 matted, deep chesnut-brown. Filaments bent here and there at acute an- 

 gles, zigzag, apparently distorted; the branches long, spreading at obtuse 

 angles, and beset with spine-like, divaricated ramuli. Spores scattered, 

 obvate or elliptical, with a pellucid limbus, containing a dark brown mass, 

 sessile or slightly stalked. The whole plant is remarkably brittle, if mois- 

 tened after having been dried. 



10. E. Landsburyii, Harv. ; filaments dark brown, tena- 

 cious, intricate, much branched ; branches irregularly forked, 

 divaricate, zigzag, bristling with numerous, short, spine-like, 

 horizontal ramuli ; articulations shorter than broad, the en- 

 dochrome filling the cell, and recovering its shape on re- 

 moistening, after having been dried. Harv. Phyc. Brit. t. 

 ccxxxiii. 



Dredged in deep water. Annual. Summer. Lamlash, Rev. D. Lands- 

 borough. Eoundstone Bay, W. H. H. Forming small, intricate tufts. 



