130 ASPLENIl'M, § EUASPLENITTM. 



its affinities are not pointed out by authors. Kunze alone remarks, " Ab A. Mo, 

 S\v., quocuin Sprengeliiis, licet dubitauter, conjunxit, abunde differt." Metteiiius 

 places it between ./. tniicronafitm, Pr., and dentatum, with neither of which does 

 it appear to have much affinity. 



86. A. {^\jL7LSY)\e\\\wn\) depauperutum^Y^c; " fronds cacspi- 

 tose glabrous pinnato-pinnatifid tender lanceolate in outline 

 virgate at the apex naked rooting, rachis winged bearing 

 pinnfc to the very base, pinnae approximate pinnatifid, the 

 segments incised acuminate, sori ovoid, indusium tender 

 flaccid, sporangia ovoid, annulus 20-22-articulate, spores 

 episporiate ovoid." Fee, jme Mem. Foug. p. 52. t. 15. f. 3. — 

 Metten. Asplen. p. 123. 



Hab. "Bolivia, Weddell,n.\2Zb." — A peculiar-looking plant, judging from the 

 figure ; it is otherwise quite unknown to me. It is small, 5 inches high, and the 

 rachis is prolonged 1-2 inches beyond the pinnae, and is probably viviparous, but 

 quite erect, not, like the rest of the rachis, flexuose. 



87- A. (Euasplenium) dentatum, L. ; caudex a small root- 

 ing erect rhizome, stipites tufted 2-6 inches long slender 

 brownish below, fronds subdimorphous (sterile shorter and 

 on shorter stipites) oblong-lanceolate 3-5 inches long pin- 

 nate firm-membranaceous green, pinnae not numerous rather 

 long-pctioled more or less patent nearly \ an inch long 

 rhombeo-ovate or subelliptical or obliquely obovate cuneate 

 at the base obtuse crenato-lobate angled rarely subauricled 

 at the superior base, those of the barren fronds more orbi- 

 cular, lowest pair more distant rarely 3-lobed or tripartite, 

 veins subflabellately forked, sori 6-8 linear-oblong, involucre 

 pale membranaceous, rachis compressed. — Linn. Sp. PL p. 

 1540. Sio. Syn. Fit. p. 80. JVilld. Sp. PI. v. p. 324. Hook, 

 et Grev. Ic. Fil. t. 72. Metten. Asplen. p. 123 {excl. syn. A. 

 Gilliesianum, Hook.). Plum. Fil. t. 101. 



Hab. Tropical America, chiefly in the West Indian Islands. Guadeloupe, 

 V Herminier. Jamaica (where it is called the " Wall-rue"), Purdie, Bancroft, 

 M'Nab, Dr. Alexander Prior. Cuba, Otto, n. 179 ; Wright, n. 853. Vera Cruz, 

 Mexico, Linden, n. 77. — With no very marked characters, and variously shaped 

 pinnae, this is nevertheless not difficult to recognize. Several of my specimens 

 exhibit dimorphous fronds, having shorter sterile ones with shorter stipites, and 

 more orbicular, closer-placed pinna; ; the fertile fronds on longer stipites, and 

 with narrower, and often narrow-obovate pinnae. 



88. A. (Euasplenium) resedum, Sm. ; caudex long-creep- 

 ing branched about as thick as a goosequill, stipites scattered 

 distant generally (as well as the slender rachis) ebeneous- 

 purple and very glossy sometimes herbaceous and opaque 

 5 inches to a span long, fronds membranaceous dark-green 



