maxon: a new polystichum 621 



of small, narrow, attenuate, paler scales, these freely denticulate- 

 ciliate. Fronds several, erect-spreading, 40-120 cm. long; stipes 

 stramineous above the dark arcuate base, usually more than half as 

 long as the blade, sulcate; blades narrowly ovate to narrowly oblong- 

 lanceolate, very long-acuminate to long-attenuate, 25-75 cm. long, 

 8-25 cm. broad, bipinnate; rachises densely and subpersistently paleac- 

 eeous, the scales pale, mostly linear-attenuate, or acicular from a small, 

 roundish-cordate, fimbriate base; pinnae numerous, the lower ones 

 slightly apart, spreading, a Uttle shorter than those above, these mostly 

 contiguous, oblique, often strongly arcuate, linear to narrowly oblong- 

 lanceolate from a broader, invariably inequilateral base, attenuate 

 from the middle, the apex rather abruptly acute to long-acuminate; 

 pinnules numerous, oblique, straight or usually falcate, petiolulate, 

 obliquely ovate or ovate-oblong from a distinctly cuneate, inequilat- 

 eral base, the superior basal pinnule much the largest, this obhquely 

 cleft or with several pairs of nearly free segments, the other pinnules 

 auriculate, serrate to obliquely incised, the acuminate apex and the 

 curved serratures rather abruptly short-awned; pinnules with a copious 

 covering of pale, lax, sinuous, tortuous, filiform scales beneath, a few 

 similar scales borne on the upper surface; leaf tissue bright light green, 

 paP3^raceous, the course of the veins evident above; sori numerous, 

 terminal or subterminal upon the first anterior branch of the oblique 

 veins, or several pairs borne upon the simple pinnately arranged vein- 

 lets of the auricles and of the segments of the superior basal pinnules; 

 indusia orbicular, membranous, copiously long-ciliate, the cilia flaccid, 

 septate, frequentl}^ equaling in length the diameter of the body of the 

 indusium. 



Type in the U. S. National Herbarium, no. 887829, collected "near 

 bridge, Peter's Creek," Santa Cruz Mountains, San Mateo County, 

 California, May 2, 1903, by W. R. Dudley. Three sheets with identi- 

 cal data are preserved in the Dudley Herbarium, which contains also 

 numerous other collections b}^ Professor Dudley of the same plant 

 from the Santa Cruz peninsula, as follows: Near bridge below La 

 Honda, San Mateo County, March 24, 1894; King's Mountain, San 

 Mateo County, March 5, 1898; sandstone rocks. Upper Gazos Creek, 

 San Mateo County, January 1, 1902; cliffs near Camp on Pescadero 

 Creek, Santa Cruz ]Mountains, San Mateo County, June 19, 1905; 

 rocky canyon of east fork of Waddell Creek, Santa Cruz County, Sep- 

 tember 23, 1901; south fork of Big Creek, Santa Cruz County, August, 

 1903; Los Gatos Canyon, Santa Clara County, April 21, 1895, July 22, 

 1895. Other specimens from the same or near-by regions are as fol- 

 lows: Foothills west of Los Gatos, Santa Clara County, Heller 7226; 

 Hume Canyon, Saratoga, Santa Clara County, alt. 270 meters, Pendle- 

 ton 1468; Santa Cruz Mountains, Anderson, Miss E. B. Norton, Mrs. 

 A. E. Bush, Miss Bowles; San Gregorio, San Mateo County, May 31, 

 1870, Brannan & Kellogg; Ukiah, Mendocino County, May 11, 1869, 

 Kellogg; above "Grimes," Santa Lucia Mountains, Monterey County, 

 August, 1903, Dudley; without special locality, Kellogg & Harford 1183. 



