ADIANTUM. 



Efi". Ch. Mafies of capfules oblong, or roundifti, inferted except that the upper fides of the branches in the latter are 

 into each marginal, reflexed, limited involucrum. clothed with fine ihort rufty down, like velvet, whith 



Such is the charafter of the original ^diantum of all might efcape the notice of profefTor Retzius. The common 

 authors, a numerous genus, from which Dr. Swartz has firft Jali, except at the very top, is quite fmooth and naked, as 

 diftinguifhed his Cheilasthes, to be treated of hereafter defcribed by him. 



in its" proper place, whofe charafter is, that the mafles of 

 cap/uks are really placed on the margin of the leaf itfelf, 

 each being covered only by its refpcftive involucrum. The 

 difference is nice, and efcaped every previous obferver, but 



Seft. 6. Frond tzvice, thrice, or four times, pinnate 

 Thirty fpecies. 



25, A. Lancea, Linn. Sp. PL 

 Ind. Occ. 1 7 17. Jacq. Ic. Rar. 



1557 ; 26, Jriatum, Sw. 

 t. 646 ; 27, tetraphyUum. 



we believe it to be a very found one, inafmuch as it is attended Willd., found by Humboldt and Bonpland near Caripe ; 

 by a difference of habit, and the involucrum of Cheilanthes 28, politum, Willdenow, found by the fame at Cumana ; 

 is not always neceffarily interrupted, though the maffes of 29, pyramldale, Willd., which is Polypodium pyramidale, 

 capfules, fori, are dillinft. Vmw. Sp. PL 1554. This is Filix ramofa pyramidalis, pinnis 



In our former article, (fee Adiantum,) forty-fix fpecies parvis, Petiv. Fil. n. 40. t. 4. f. 12, not f. 2. Linnius 

 are briefly enumerated, with a particular account of two, adopted this fpecies entirely from Petiver's figure, and was 

 which need not here ' be repeated. As the gsnus now thus led to make it a Polypodium. But that figure is copied 

 ftands, Willdenow has fifty-four, (befides nineteen of irom Lonchitis ramofa tenuis, pediculis fpinqfis, TlviTn. Fi\. 1^2 

 Cheilanthes,) difpofed in fedions, of which we (hall give 

 examples, with additions of new fpecies. 



Seft. I. Frondftmpk. Three fpecies in Willdenow. 



I, A. reniforme, Linn. Sp. PL 1556 ; 2, afarifolium 

 of Willdenow, Lamarck f. 2 ; and 3, ph'd'ippenfe, Linn. 

 Sp. PI. 1556- We have none to add. For A. fagittatum, 

 fee LiNDSffiA. 



Seft. 2. Frond ternate. 



4, A. trlphyllum only. Sm. Plant. Ic. t. 74. 

 Seft. 3. Frond pinnate. Twelve fpecies in Willdenow. 



5, A. macrophyllum, Swartz Ind. Occ. 1707 ; 6, obli- 

 quum, Willd. ; 7, lunulatum, Willd. 

 8, arcuatum, Sw. ; 9, pumilum, Sw. 

 f . 4 ; 10, caudatum, Linn. Mant. 



Willd. from the ifland of Mauritius ; 



Phytog. t. 9. f . I ; 



Pluk. Phyt. t. 251. 

 308 ; II, hirfutum, 

 12, rhi%ophorum, Sw. 



Syn. 320, from the fame country. We have two to add. 



A. platyphyllum. Broad-leaved Maidenhair. Swartz in 

 Stockh. Tranf. for 18 17. 74. t. 3. f . 6 — Frond pinnate ; 

 leaflets flalked, ovate, taper-pointed, nearly entire ; oblique, 

 and dilated upwards, at the bafe ; glaucous beneath. Dots 

 oblong, contiguous along the whole margin. — Native of 

 ihady woods in Brafil. Freyreis. A foot high, or more, 

 confifting of from three to fix alternate leaflets, two inches 

 long and one broad, with numerous divaricating veins ; the 

 barren ones very inconfpicuoudy ferrated. Common flalk 

 fmooth, of a fliining black. The infertion of the capfules 

 is by no means well explained, either in the figure or de- 

 fcription. 



A., paradoxum. Ambiguous Maidenhair. Br. n. i. — 

 " Frond pinnate ; leaflets heart-fhaped, oblong-ovate, or 

 lanceolate ; their veins underneath obfolete. Dots linear, 

 uninterrupted." — Gathered by Mr. Brown, near Port 

 .lackfon. New South Wales. 



Seft. 4. Frond partly bipinnate. Five fpecies. 

 13, A. deltoideum, Sw. Ind. Occ. 1705; 14, denticula- 

 tum, ibid. 1711; 15, falcatum, ibid. 1715 ; 16, -varium, 

 Willd., found by Humboldt and Bonpland, near Caripe, in 

 South America; 17, ferrulatum, Linn. Sp. PI. 1557. 



Seft. 5. Frond three-branched, digitate, or pedate ; the 

 branches pinnate. Seven fpecies. 



1 8, A. ternatum, Willd., found near Caripe, in South 

 America, by Humboldt and Bonpland ; 19, radiatum, 

 Linn. Sp. PL 1556; 20, pedalum, ibid. 1557, fee our 

 former article; 21, Lindfita, Cavan. Leccion. 271, ga- 

 thered by Louis Nee, at Quito ; 22, patens, Willd., found 

 by Bredemeyer at the Caraccas ; 2^, puiefcens, Willd., 

 which is pedatum of Forft. Prodr. 83 ; 24, Jlahellulatum, 

 Linn. Sp. PL 1557. This laft is unqueftionably A. fuf- 

 cum, Retz. Obf. fafc. 2. 28. t. 5, the figure of which pre- 

 ;;ifcly anfwers to the Linnaean fpecimen oi jlahellulatum. 



t. 54, where the charafters and habit of an Adiantum arf- 

 confpicuous ; 30, melanoleucum, Willd., adopted by this 

 author, without feeing a fpecimen, from Adiantum lunulis 

 albicantibus fignatum. Plum. Fil. 79. t. 96 ; 31, crijlatum, 

 Linn. Sp. Pi. 1558; 32, nerixfum, Swartz Syn. 123. 

 (fee hifpidulum, Br. n. 2, at the end of this feftion) ; 33, 

 hifpidulum, Swartz Syn. 124 and 321, fufpefted by Mr. 

 Brown to be the fame as n. 32 ; 34, ■vdlofum, Linn. Sp. PL 

 1558 ; 35, monoforatum, WiUd., gathered at the Caraccac 

 by Bredemeyer ; 36, ferrato-dentatum, Willd., found by 

 Humboldt and Bonpland near Caripe, and in Brafil ; 

 37, crenatum, Willd., taken up entirely from Lonchitis 

 ramoja, rotunde crenata. Plum. Fil. 41. t. 53 ; 38, pulveru- 

 lentum, Linn. Sp. PL 1559; 39, umhrofum, Willd., found 

 by Bredemeyer, in ftiady fituations at the Caraccas ; 40, 

 trapeziforme, Linn. Sp. PL 1559, a Weft Indian fern, 

 ftrangely fuppofed to grow in Scotland, becaufe Sibbald's 

 rude figure of a variety of Afplenium marinum was taken 

 for it ; fee Sm. Fl. Brit. 1 1 28; \\, pcntadaSylon, Langf- 

 dorff and Fifcher, Ic. Fil. t. 25, found in Brafil ; 42, afjine, 

 Willd., which is trapeziforme of Forft. Prodr. 84. 

 " Schkuhr Crypt, t. 121. b ;" 43, CapiUus Veneris, Linn. 

 Sp. PL 1558. FL Brit. 1 138. Engl. Bot. t. 1564, fee 

 our former article ; 44, emarginatum, Willd., found by 

 Bory de St. Vincent, on rocky margins of torrents in the 

 ifle of Bourbon ; 45, cuneatum, Langfdorff and Fifcher, 

 Ic. Fil. t. 26, found in Brafil ; 46, tenerum, Swartz Ind. 

 Occ. 1719; 47,/rafiZf, ibid. 1721; 48, (ro»c/«n«m, Willd., 

 which is tenerum, Schkuhr Cryt. t. 121, (but not of other 

 authors,) gathered by Humboldt and Bonpland in the 

 Caraccas ; 49, fumarioidts, Willd., comm.unicated by 

 Fliigge, from the ifle of Bourbon ; 50, ethiopicum, Linn. 

 Sp. PL 1560; 51, frigonum, Labill. Nov. HolL v. 2. 99. 

 t. 248. f. 2, confidered by Mr. Brown as not different from 

 the following; 52, ajjimile, Swartz Syn. 125 and 322. 

 *• 3- f- 4» 53> fallens, Swartz Syn. 125 and 323, figured 

 in Pluk. Phyt. t. 403. f.'2 ; ^i^, polyphyUum, Willd., found 

 at the Caraccas by Bredemeyer. We fubjoin the following. 

 A. hifpidulum. Roughifli New HoUand Maidenhair. 

 Br. n. 2. Swartz Syn. 124? See n. 33, above. (A. 

 nervofum ; Swartz Syn. 123? See n. 32, above. A. pe- 

 datum ; Forft. Prodr. 83, on the authority of his herba- 

 rium. ) — Frond doubly pinnate ; loweft branches divided ; 

 leaflets ovate-rhomboid, toothed in front, ftriated, rather 

 hairy, and rough. Involucrum nearly orbicular, hairy. 

 Common ftalk and ribs rough — Gathered by Dr. White, 

 as well as by Mr. Brown, in New South Wales, and by 

 the latter in the tropical part of New Holland. A foot 

 high, or more, with a ftrong tufted root, whofe crown is 

 fcaly. Stalks purplifti-black, harfh. Leaflets fomewhat 



ftalked, 



