92 ASPLENILMj 



(Iccurved minutely setulose beneath, from a broad sul)hastate 

 base lanceolate very long and finely acuminated deeply pin- 

 natifid almost ])innute below sinuato-lobate above, inferior 

 lobes cordato-ovate sinuato-lobulate or toothed, veins repeat- 

 edly dichotomous, sori few in each lobe short linear-oblong 

 solitary in the small superior lobes at length confluent. — 

 Nutt. 'in Gm. of N. Am. PI. ii. p. 5\. Hook. Ic. PL t. 927 

 {or Cent, of Ferns, t. 27). A. Gray, Man. of N. Am. Bot. p- 

 727. Metten. Fil. Hort. Lips. jj. 72. t. 10./. 1. 2. 



llab. United States of America, very rare. Banks of the Sclniylkill, near Pliil- 

 a(lcli)liia, Nut/all, Dr. Bromfield, Mr'. J. M'Nab. " Mi>)e la Motte," Soutliern 

 Tennessee, on sandstone, Nutiall. — With nuich tlie habit of CamptosornH rhizo- 

 phyllus, it is nevertheless a widely ditferent plant in venation and arrangement of 

 the sori ; and the fionds, though the points seem to decline to the ground, do 

 not appear to he rooting or viviparous. 



30. A. (Euasplenium) alternans. Wall. ; caudex short de- 

 scending copiously rooting squamose with subulate scales as 

 is the very short (rarely an inch long) stipes and base of the 

 costa beneath, fronds ceespitose about a span long, cliarta- 

 ceous very opaque pale-rusty -green beneath glabrous lanceo- 

 late scarcely acuminate attenuated below deeply and regu- 

 larly pinnatifid tliroughout, lobes ovate or triangular-oblong 

 with wide sinuses obtuse quite entire, veins subflabellato- 

 dichotomous all free, sori copious on all the lobes in two 

 rows linear-oblong erecto-patent, the superior basal one 

 parallel with the costa. — JVaJL Cat. n. 221. A. Dalhousise, 

 Hook. Ic. PL t. 105. Metten. A.^jilen. p. 147. 



Hah. India, Dr. Wallich (no certain locality specified : entirely, I believe, con- 

 fined to the North-west Himalaya, at elevations of 6000 feet, in stony woods), 

 Lady Dalhoude, Strachey and Winterbotlom (Kumaon), Edgeworlh, Col. Bates 

 (Simla), Dr. Thos. Tliomson, and (Chumbra Hills), Jacquemont, n. 59, GO, 61, 

 and 62 (in Herb. Nostr.), Dr. Fleming, Iliigel, Hoffmeintfr. Abyssinia, Schimper, 

 n. 288 {Herb. Hook, from Herb. Paris.). — This is a very peculiar-looking plant, 

 which but for the absence of the scaly covering might be mistaken for Anpl. 

 Ceterach, which also is known to have a minute asi)leuioid involucre ; but then 

 its anastomosing venation would separate it from the present species in a sys- 

 tematic arrangement. 



31. A. (Euasplenium) attennatum, Br.; caudex short sub- 

 repent copiously rooting, stipites tufted 2-4 or 5 inches long 

 paleaceous with black subulate spreading scales, fronds char- 

 taceous a span to a foot long linear-oblong very much and 

 gradually acuminated (the apex entire and often proliferous 

 the margin sublobato-scrrated, below deeply lobed (almost 

 pinnate) with rounded and truncated serrated lobes, veins 



