204 ASPLENIUM, § EUASPI.ENIUM. 



veins single scarcely extending beyond the middle of the 

 pinnule, sorus short oblong or oval on the disc distant from 

 the margin, involucre meml)ranaceous pale. — Metten.Aspleu. 

 p. 129. t. 5.f. .32, 3.3. Moore, Ind. Fil. p. 1G2. Aspidium 

 rutaceum, JVilld. Sp. PL v. p. 266. Athyrium, Pr. Hook. 

 2nd Cent, of Ferns, t. 34. Lonchitis in auriculas sul)rotundas 

 divisa, Plum. Fil. p. 44. t. 57- 



Hab. St. Domingo, Plumier. Columbia ; Tovar, Moritz, n. 402 {Herb. Nostr.). 

 New Granada, Ocaiia, ScMim, n. 624 ; and Sierra Nevada, elev. 6000 feet. Ve- 

 nezuela, i^eHrf/er, n. 123. On trunks of trees, forests of Arcbedona, Andes of 

 (iuito, Jameson, n. 788. — Plumier's figure is a very rude, yet a tolerably faitliful 

 representation of tbis plant, but be does not apjjear to bave seen tbe elongated 

 naked racbis, wbicb indicates its affinity witb A. rhizophylhtm, and exists in 

 nearly all my specimens. Indeed, two of the numbered specimens above alluded 

 to of Scblim, and of tbree other collectors — but wbicb I consider true A. ru- 

 taceum — are brought under his A. myriophxjllum {A. rhizoplnjllum, var. nobin). 

 Its distinctive character rests upon tbe broad-spathulate, long-petiolulate pii>- 

 nules, and these are arranged with singular regularity and at equal distances. All 

 my specimens bave tbe same character, and they are identical with an authentic 

 specimen from Mettenius, who is tbe only author that has given a description 

 from tbe plant itself. Willdenow's character is evidently from Plumier's figure, 

 and the short sori represented gave Willdenow reason to guess the Fern was an 

 " Aspidium." 



196. A. (Euasplenium) divaricatum, Kze.; "frond very 

 thin and membranaceous glabrous bright green oblong or 

 lanceolate flexuose acuminate bi- or tripinnate the apex 

 simply pinnated, pinnee subsessile decurrent approximate 

 patenti-divergent oblong rather obtuse, primary pinnules pe- 

 tiolate trapezio-ovate obtuse, ultimate ones subquinate from 

 a cuneate iiase linear-oblong rather obtuse sterile ones nar- 

 row, fertile broader obliquely ovate monosorous, sori and 

 involucres membranaceous short-oblong large, primary rachis 

 brown with a green margin, secondary ones winged green, 

 stipes very short (not always) angled ferruginous minutely 

 paleaceous, rhizome stout horizontal fusco-paleaceous at the 

 apex radicose with rufo-pilose fibres." Kze. Sijn. Fil. Pwpp. 

 in Linncea, \x. p. 71. Schk. Fil. Snppl. ii. p. 94. t. 139 [ex- 

 cellent). Metten. Asplen. p. 115. t. 5. /. 7, 8 [pinnules only, 

 not satisfactory). A. myriophyllum, /3 divaricatum, Moore, 

 Ind. Fil. p. 148 [excl. all the localities from my herbarium, 

 save those of Peru and S. Chili) . 



Hab. Andes of Peru, Pceppig {in Ilerb. Nosfr.), M'Lean, n. 1800 {common 

 form). South Chili, Wm. Lobb {Herb. Nostr.).— One of the most finely cut and 

 most delicate of Ferns, very local, I believe ; quite Andine in Peru, descending to 

 much lower elevations in Chili ; well represented and described by Kunze. Its 

 peculiarity consists in the fertile obovate lobe (so broad that the sorus is never 



