Notholccna. 



FILICES. 335 



4 P Scouleri Ilouk. & Grev. Uootstock lieavier and stalk stouter than in 

 the other species : IVoiid coriaceous, fleshy, a few inches to a foot long, broadly ovate 

 in outline, pinnatitid to the midrib; segments linear-oblong, obtuse, obscurely ser- 

 rulate, cartilaginous-margined, the terminal one distinct and often largest ot all ; 

 veinlets regularly anastomosing, and forming a single series ot arge areoles with a 

 few eKternal free veinlets : sori very large, one within each areole on the upper seg- 

 ments of the frond, sometimes also on the tips of the other segments. — Ic til. t. 5b; 

 Eaton, Ferns of N. Amer. i. 193, t. 2G. F. pac/u/ph>/ll>m, Liiton, Am J onvn. bci. 

 2 ser. xxii. 138. P. carnosim, Kellogg, Proc. Calif. Acad. ii. 88, fig. 24. 



On trees and stumps, more rarely on rocks or on the ground, near Crescent City and Mount 

 Sha a (JrJ"r) Mari; County (Miss I'clton), and Guadalupe Island (PrJmcr) ; Oregon ami 

 northward to Biilish Columbia. This very fine Polypody was hrst described from specimens only 

 a few inches high, but it is now known to be the largest of our Pacific Coast species. 



2. GYMNOGRAMME, Desv. 



Sori oblong or linear, following the course of the veinlets and, like them, either 

 simple, forked, pinnated or variously anastomosing, without indusium. 



A larcre and not very natural genus, the species with fronds mostly rather small and of very 

 diverse shapes, many with one or both surfaces hairy, tomentose, or covered with white or yellow 

 waxy powder. Only two species are known to occur in the United States. 



1 G triangularis, Kaulfuss. (California Gold-Fern.) Stalks densely tufted, 

 slend.'r,' blarkisli-browi'i, polished, a few inches to a foot long : fronds deltoid or 

 pentagonal, 2 to 5 inches long and nearly as broad, pinnate ; the lower pair of pmiue 

 muclAhe largest, triangular, broadest on the lower side, bipinnatifid ; the rest oblong 

 or lanceolate, more or less pinnately lobed or incised ; segments rounded-obtuse, 

 crenated ; lower surface coated witli a yellow or white waxy powder, upper surface 

 smooth or minutely granular : lines of fruit forking, bursting through tlbe colorc^l 

 powder, and at length nearly obscuring it. — Enum. Fil. 63 ; Hooker, Fil. Exot. t. 10. 



Var viscosa, Eaton. Frond ovate-pyramidal ; pinna3 rather distant ; upper sur- 

 face viscid, as if varnished ; powder of the lower surface creamy white. — Ferns of 

 N. Amer. i. 16, t. 48, fig. 5. 



Common on rocky hillsides throughout California, extending northward it is said, to Vancou- 

 ver Island, and reappearing in Ecuador. The variety is found in the southern part of the fetate, 

 though specimens diifering from the common plant only in the white powder occur sparingly as 

 far north as Butte County. 



3. NOTHOL-aiNA, E. Biown. 



Sori on the veins at or near their extremities, roundish or oblong, soon more or 

 less confluent into a narrow marginal band, with no proper involucre, but sometimes 

 covered at first by the reflexed margin of the frond. Veins always free. Fronds of 

 small size, 1 to 4 times pinnate, the lower surfiice almost always either hairy, tomen- 

 tose, chaffy or covered with waxy powder. 



A cremrs of less than forty species, most abundant in dry, rocky places from New .Mexico to 

 Chili, but a few are found in the Mediterranean region, in South Africa .\ustralia etc., and one 

 occurs as far north as Kansas and Missouri. Mettenius referred many of tliem to irijvimoramim 

 and the rest to Chcilanthcs, with both of which genera this has very close alhnities. 

 * Fronds woollij or tomentose, especially on the lower surface. 



1 N Newberryi, Enton. Ftootstock creeping, covered with very narrow 

 dark-brown subulate! scales : stalks clustered, 3 to 6 inches long, slender, blackish- 

 brown, at first woolly : fronds as long as the stalks, lanceolate-oblong, covered, most 

 densely beneath, with a web of very fine entangled whitish hairs, 3 to 4 times pin- 

 nate ; pinnaB triangular-ovate, the lowest ones rather distant, but scarcely snmller ; 

 ultimate segments "crowded, roundish-obovate, one third to one hall a line wide, en- 



