2 Saunders : Siphoneous Algae of the Pacific Coast 



■/l/c 



the true Codium tomentosian are elliptical, pointed at both ends, 

 slightly thickened at the apex and shorter — 200-290 /i long and 

 broader, 8.0- 140// broad 



cnuL Compare Fig. \, b, c and d. 



Recently Miss J. E, Tilden has issued this same 

 lected at Vancouver Island, British Columbia.* A 

 Miss Tildcn's specimens were softened am 

 drawn from a microscopical mount of it. 



The plant is common all along the Pacific Coast from Sitka as 

 far south at least, as the southern California coast. 



6 and C were 



CoDiUM ADHAERANS (Cabr.) Ag. Spec. Alg. 457. 1820. 

 Aghardia adhacrans Cabr. in Phys, Sallsk. Arsbr. 



The plant body of this anomalous species is an irregular, 

 blackish-green, cushion-like, spongy mass from i cm. to 2 dm. or 

 more in extent. It consists of a felt-like strongly adherent mass 

 of creeping mycelial, branching filaments 2-8 mm. thick. From 

 the upper part of the creeping filaments arises a mass of un- 

 branched cylindrical or clavate, erect filaments which are i mm. 

 or more long, and about 100 fi wide, very obtuse or truncate and 

 slightly thickened at the distal end. 



The sporangia are cylindrical, very obtuse, sessile or subsessile, 

 300-400/^ long and 50/^ wide, borne laterally near the distal end 

 of the erect filaments. 



This species is rare or local on the California coast. Col- 

 lected at Point Pinos (the southern point of Monterey Bay), and at 

 Point Lobos (ten miles south of the last locality) ; it seems to pre- 

 fer the under side of overhanging rocks. 



Valonia ovalis (Lyngb.) Ag. Sp. Alg. i : ^^i. 1820. 



Gastridum ova/e L.yngh. Hydr. Dan. 72. 18. 18 19. 



^^' 350, / 2. 

 The plant consists of a single-celled obovatc, thin-walled, in- 

 flated, sessile sack 2—8 mm. high and about as broad. 



U "11 



This delicate little plant was collected for three successive sum- 



*Tilden, American Algae, Century III., No. 281. 



