Priate XLIX. 
ASPLENIUM Porrarcas, DC. 
: Natural Order FInices. 
Gun. CrHar.—Sori linear or oval, few and solitary, rarely regularly 
placed in two rows. Indusiwm fastened by the outer edge, free on the 
inner edge (7. e. towards the central nerve of the pinna), bent outwards. 
Fronds 1-2—3-pinnatifid. 
Spec. Guar.—Fronds rarely 3 inches long. Rachis black in the 
greater part of its length, covered with glandular hairs, cylindrical (not 
channelled and winged as the rachis in A. Trichomanes, Linn., is). 
Indusia frequently placed below the branching of the nerves. 
Asplenium Petrarche, DOC. Fl. Fr. v. 238. A. Trichomanes, . pu- 
bescens, Gren. et Godr. FI. de Fr. ii. 636. 
_ Hasirar.—Sunny rocks of Jurassic limestone, from: shore to 1290 
feet elevation. Winter. 
Remarks.—MM. Grenier and Godron treat this plant as a mere 
variety of A. Trichomanes, Linn. (Sp. Plant. p. 1540), but though both 
these ferns grow together at Mentone, I have been quite unable to trace 
any intermediates, and after careful examination suggest the above 
characters as distinctive. A. Petrarche, DC., seems to be a rare plant, 
though perhaps it may be often overlooked.” Grenier and Godron cite 
it as growing at Vaucluse and Toulon. 
ExpLaNnatTion or Pirate XLIX.—Fig. 1, one of the pinne and part 
of the rachis, magnified. 
