336 BOTANY 



fibrillose; sori in two rows on the segments, nearer the midvein than the 

 edge — Syn. Fil. p. 53. A. aculeatum, var. intermedium, Hooker, British 

 Ferns, t. 11. 



Typical specimens were collected on the Cotst Banger, near Santa Cruz, California, by Prof. 

 Bolander, and at Ukiah by Dr. Kellogg, and -with them the two following, which had best be considered 

 as varieties of this world-wide and exceedingly variable species. 



Var. CaSilbrniciina. 



Frond elongated, thinly coriaceous, tapering slightly at the base; 

 pinnae but slightly incised above the middle, more and more deeply cleft 

 towards the rachis, the lowest superior segment largest, but scarcely distinct 

 as a pinnule, and not at all auricled. — Aspidium Californicum, D. C. Eaton, 

 Proc. Am. Acad, vi, p. 555. 



Mountains near Santa Cruz ( Bolander). Ukiah, Kellogg. Frond long and narrow, as in A. munitum, 

 and with similar chaffiness, but incised much as in the European var. lobatum. 



Var. annulare. 



Frond oblong-lanceolate, scarcely or not at all narrowed at the base, 

 truly bipinnate ; pinnules distinctly short-stalked, mostly auricled and 

 slightly incised ; the basal one largest and again pinnatifid ; under surface 

 chaffy-fibrillose. — Aspidium angular e, Willd. Sp. PI. v, p. 257. Polystichum 

 angulare, Presl; Moore, Nat. Print. Brit. Ferns, t. 12 and 13. 



Mountains near Santa Cruz, Bolander. The fine specimen of this plant which came from the same 

 region as the preceding forms is very closely similar to one from St. Martha's, Guilford, England, sent me 

 by Mr. Thomas Moore. The lowest pinnae are not reduced, as they are in var. Bramii (the form of 

 Northern New England), and the pinnules are as distinctly separated as one ever sees them in that form, 

 while they are much more incised. 



$ 3. CYRTOMIUM. 



Indusium orbicular as in § 2 : fronds simply pinnate, with broad pinna; 

 veinlets commonly connivent and uniting near the edges of the pinnce. 



Aspidium juglamdofoiium, Kunze. 



Fronds a few inches to two feet long, coriaceous, pinnate ; pinnse short- 

 stalked or the upper ones sessile, ovate-oblong or broadly lanceolate, the 

 terminal one distinct and in small fronds the largest, the lateral ones one to 

 six on each side, 2-6 inches long, one inch or more broad, sometimes acu- 

 minate, entire, appressed-serrulate, smooth on both surfaces ; veins pinnated, 

 the veinlets few, either free or uniting near the margin ; sori scattered in 



