NO. 1 TAYLOR : PACIFIC MARINE ALGAE 93 



cm long, above branching freely, the lower divisions principally dicho- 

 tomous, with many secondary branches and so appearing alternate, the 

 upper subdichotomous ; lower branches thickened, 2-5 mm broad, gradu- 

 ally expanding upwardly to near the summit, reaching 1.5-3.0 cm in 

 width, foliaceous, firm, the divisions narrowly cuneate to oblanceolate, 

 often somewhat sinuose, the margin very coarsely obtusely sinuate dentate 

 at intervals of 2-5 cm, the ends broadly rounded ; structurally showing in 

 the expanded blades 4-6 layers of colorless medullary cells and one cortical 

 layer, in the upper branching stipe portions 6-8 medullary layers, 1-2 

 subcortical layers and one cortical layer; apex showing a marginal zone 

 of initial cells ; reproduction not seen. 



These plants somewhat resemble S. Solieri, but are broader ; they also 

 show similarities to plants in the Kew Herbarium considered by Murray 

 to be near S. asperum, but are broader and less forked laterally. The 

 proliferations near the base are not unlike those on S. Howellii Setchell & 

 Gardner (1937, p. 74) kindly loaned by the California Academy of 

 Sciences, but the type material is so badly preserved that it seems impos- 

 sible to get a good idea of the habit and the margins of the blades without 

 soaking it up and remounting, a procedure not lightly to be undertaken. 

 It is not impossible that S. veleroae is a more developed and broader form 

 of S. Howellii. One should also consider the note by Howe ( 1914, p. 69) 

 regarding Piccone's (1889, p. 17) S. Schroedert record in relation to this 

 form; they reported material from I. Santa Maria. 



Ecuador: Archipielago de Colon, from the reef north of Tagus 

 Cove, I. Isabela, no. 34-162, 13 Jan. 1934. Ibid., frequent in the lower 

 littoral near Black Beach Anchorage, I. Santa Maria, no. 34-212 

 (TYPE), 17 Jan. 1934. 



Spatoglossum Schmittii n. sp.^^ 

 Plate 13 



Plant exceeding 45 cm in height, broadly foliaceous, light brown and 

 thin, the holdfast cushion shaped and like the lower stem stupose, the 

 stem subcylindrical below, flattened above, irregularly branched, 2-6 cm 

 long, the blades dividing irregularly below, the lower segments character- 

 istically deltoid at the base, to 4-6 cm broad, above the branching di- to 

 trichotomous, with the rounded sinuses, the ultimate segments ligulate, 



69 Spatoglossum Schmittii n. sp.— Plantae altitudine ad 45 cm vel plus, stipite 

 irregulariter ramoso, laminis tenuibus infra irregulariter divisis, costam vestigi- 

 alem habentibus, deltoideis, ad 4-6 cm latitudine, supra 2-3-chotomis, sinibus 

 rotundatis, segmentis ultimis Hgulatis, obtusis. Planta typica in loco dicto Post 

 Office Bav, I. Santa Maria, Ecuador, legit W. R. Taylor no. 34-295, 19 Jan. 1934. 



