ASPIDIUM, § POLYSTICHUM.

9

Eloi), in the south. Eastward we possess it from Davuria ( Tnrczaninov), and

“"Vi 11,0 - --“ r'uoocss H jrom jjavur:

a decided specimen of the species, gathered by Jacquemont in N. W. India , amongBirch, on high mountains, at Pye Pundo. In the New World , the only locali-ties recorded are, Michigan , U. States, and Lake Superior ( Dr. Asa Gray ); Eastside of Rocky Mountains . B. N. America , apparently rare, Drummond ; and I haverecently received, from British Columbia , splendid specimens 2 feet long, gatheredby Dr. Lyall, ‘ he ® re f on Bo ™ dar y Commission, at the Cascade Mountains ,

4 f 5< 0 °,r 6000 “• Clev ‘ above the sea —This species is the least variable

of all the Polysttchums.

7. A. (Polystichum) mucronatum, Sw.; caudex short thick,stipites 3 inches to a span long densely paleaceous with longlanceolate fulvous scales mixed with equally long subulateones, those at the base intense ebeneous-black, rachis alsostout straight densely setoso-paleaceous, fronds l-li inchlong lanceolate coriaceous attenuated at both extremitiesdensely crowded with horizontal pinnae 1-1^ inch longpetiolate lanceolato-falcate mucronate truncated and sharplyauriculate and mucronate at the base above, the marginsnearly entire or obtusely serrated often villous beneath, sorinumerous in two approximate series, involucres firm, gene-rally black with a deep central depression. (Tab. CCXVI.)Sw. Syn. Fil. t. 43. Willd. Sp. PI. v.p. 225. Schk. Fil.P- 30. t. 29 C. Griseb. PI. Carib.p. 137- Metten. Aspid. p.41. P. falcatum, Fee, Gen. p. 279? Polypodium , Sw. Fil.Ind . Occ. 'iii. p. 1649. Sloane, Jam. i.p. 82. t. 3 Q.f. 4, 5.

Hab. Jamaica , Swartz, Bancroft, Wiles, March, Wilson, Purdie ; Port RoyalMountains, Hartweg, n. 1584. St. Domingo ( Mettenius ). Guadeloupe (Grisebach).~A well-marked species among the truly pinnated group of Polystichum, recog-nized by the stout and very strict stipites, with their dense clothing of two or indeedthree kinds of scales, the copious setaceo-paleaceous rachis, pinnae villous beneath,and the singular form and colour of the involucres.

8. A. (Polystichum) acrostichoides, Sw.; caudex shortstout or nearly so densely paleaceous, stipites a span longand as well as’the rachis stramineous more or less paleace-ous, fronds 1| inch and more long subcoriaceous brightgreen, pinnre horizontal rather distant petiolate 2-3 incheslong straight or subfalcate, from a broad obliquely cuneatedbase truncated and sharply auricled above oblong acute mu-cronate, serratures setoso-pinulose, fertile pinnae occupyingmore or less of the upper and contracted portion of thefrond reduced in size from ^-1 inch long of the same shapeas the sterile ones, sori in 2—4 rows near the costa, even-tually confluent and covering the whole back of the pinnae.— Sw. Syn. Fil. p. 44. Willd. Sp. PI. v. p.225. Aspid. auri-culatum, Sch/c. Fil. p.3\.t. 30. Nephrodium acrostichoides,

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