24 F I L I C E S. 



Hab. California ; in the immediate vicinity of San Francisco. 



Our specimens consist of the smaller state of the plant, apparently 

 the same form as that from which Kaulfuss drew up his description. 

 The Q. triangulares figured in the Icones Filicum, above-cited, is the 

 larger state, and is furnished with a few short spines on the stipes. 



7. Gymnogramma trifoliatum, Desv. 



Gymnogramma trifoliatum, Desv. ex Kaulf. Enum. Fil. p. 72. 

 Phyllitis ramosa trifida, Sloane, Hist. Jam. p. 88, t. 45, f. 2. 



Acrostichum trifoliatum, Linn. Spec. PI. p. 1527; Sw. Syn. Fil. p. 13; Willd. Spec. 

 PL 5, p. 119. 



Hab. Peru ; between the town of Callao, and the mouth of the 

 River Rimac, close to the sea-beach. 



Whole plant from 3 to 5 feet high : found growing in large patches 

 in the locality mentioned. . 



8. Gymnogramma tartareum, Desv. 



Gymnogramma tartareum, Desv. ex Kaulf. Enum. Fil. p. 75. 

 Acrostichum tartareum, Sw. Syn. Fil. p. 15. 

 Eemionitis dealbata, Willd. Spec. PI. 5, p. 131. 



Hab. Samoan Group ; island of Tutuila ; sea-coast near Pago-pago 

 Bay; on rocks. 



Plant csespitose, with a stipes from 4 to 5 inches in length, an- 

 gular, glossy, of a brownish-black colour, and squamose-hirsute at the 

 base. Fronds bipinnate, with a thick coating of farina on its under 

 surface. Pinnae sessile and decurrent on the rhachis, the superior 

 pinnules confluent, oblong, obtuse, and dentate-serrate; the inferior 

 ones somewhat pinnatifid, with subrotund segments, their margins 

 slightly revolute. 



