328 BOTANY. 



Coast Ranges differ from the type mainly in their greater size and luxuriance. Blechnum doodioides, 

 Hooker, Sp. Fil. iii, p. 60, t. 153, seems to he, as Mr. Baker remarks, a form of the present plant with 

 interrupted involucres, as in the related genus Doodya. 



X. W00DWAKDIA. Smith. 



Woodwardia radicans, Smith, var. Americana, Hooker. 



Caudex stout, very chaffy with large scales, assurgent or erect, and 

 rising a little above ground ; stalks strong, 8-12 inches long; fronds stand- 

 ing 3-5 feet high, subcoriaceous, pinnate; pinna) 8-15 inches long, 2-4 

 inches broad, oblique to the rachis, pinnatifid nearly to the midrib; seg- 

 ments triangular-lanceolate, slightly falcate, acuminate, spinulose-serrate or 

 in large plants more or less pinnatifid ; veinlets forming a single row of 

 oblong sorus-bearing areoles each side of and next to the midvein, besides 

 a few oblique empty areoles outside the fruiting ones, thence free to the 

 margin ; sori oblong, often slightly curved, the sporangia resting in the 

 hollowed areole, and at first covered by an arched and convex indusium. — 

 Hooker, Sp. Fil. iii, p. 67. W. spinulosa, Martens & Galeotti, Fil. Mex. p. 

 64. W. Chamissoi, Brackenridge, Ferns of U. S. Expl. Exped. p. 138. 



From Long Valley to Southern California. Mexico to Chiapas and Guatemala. One of the largest 

 and coarsest of Califoruian Ferns, apparently not uucommon. The type ( W. radicans, Smith, Mem. Acad. 

 Turin, v, p. 412) is found in Madeira and along theMediterranean countries; also in Northern Indiaand 

 the island of Java. The American plant differs mainly in the absence of a chaffy proliferous hud, which 

 is commonly seen on the rachis near the apex of the frond in the old-world plant. It is alsomore decidedly 

 spinulose-serrate, and the areoles of the venation are perhaps less abundant. It is worth the while of 

 Californian Botanists to observe whether their plant is always destitute of the proliferous bud. 



XI. ASPLENIUM. Linn. 



Jl. ASPLENIUM. 



Indusia straight, confined to the upper or inner side of the fertile veinlet. 

 Asplenium Trichomanes, Linn. 



This common Eastern Fern occurs sparingly from the mountains of Colorado to the Pacific coast. 

 On the brink of the Great Canon of the Arkansas, Brandegef. Middle Mts., Colorado, Hall y' Harbovr, 

 n. 092. Monte Diablo, California, General Eaton. Oregon, Prof. Wood, E. Hall. Cascades of Washing- 

 ton Territory, Kellogg $■ Harford, n. 1177. The A. ebcnenm of the Flora of Colorado is this species. 



Var. incisum, Moore, Nature Printed Ferns of Great Britain, t. 39, D. 

 This has the pinnules a little larger and more or less incised. It occurs fertile near San Diego 

 (Dr. Newberry, Mr. Cleveland), and has also been collected in Vermont by Mr. C. C. Frost. 



Asplenium parvulum, Martens & Galeotti. 



Fronds tufted, erect, rigid, 4-10 inches high, narrowly linear-oblan- 

 ceolate in outline, short-stalked, pinnate ; stalk and rachis black and shin- 



