FERN FAMILY. 



2. Asplenium ebenoides R. R. Scott. Scott's Spleemvort. (Vi K . 4 



Asplenium ebenoides R. R. Scott, Journ. Roy. Hort 

 Soc. 87. 1866. 



Rootstock short, chaffy. Stipes blackish through- 

 out, tufted, i^ / -4 / long; leaves lanceolate in out- 

 line, variable in size and length, 3 '-9' long, I'-a' 

 wide at the base, firm, tapering into a very long 

 narrow acuminate apex, pinnatifid, or commonly 

 pinnate below, the segments or pinnae lanceolate 

 from a broad base, acute or acuminate, irregular in 

 length, the lower sometimes shorter than those 

 just above; sori several on each segment, straight 

 or slightly curved ; indusium narrow, reflexed when 

 the sporanges are mature. 



On limestone, Connecticut to Indiana, south to Ala- 

 bama. Rare and local except in the last named local- 

 ity. Ascends to 1400 ft. in Virginia. The plant usually 

 occurs with Cnmptosorus rhizophyllus&aA Asplenium 

 platy neuron and is suspected of being a hybrid betwi-cii 

 them. 



Asplenium parvulum Mart. \- Gal. 

 Spleenwort. (Fig. 48.) 



Stnal 



Asplenium parrultnn Mart. 

 [reprint 60.] 1842. 



C.al Mi-m Acad. Br. 



Rootstock short, creeping, chaffy with black stiff scale*. 

 Stipes tufted, blackish and shining, i'-a' long; leaves 

 rather firm, linear-oblong or linear-oblanceolate. 3'-I</ 

 long, 5 // -i2 // wide, once pinnate; pinnae a"-6" long, 

 mostly opposite, oblong, obtuse, entire or crenulate, 

 auricled on the upper side and nearly sessile, the middle 

 ones the longest, the lower gradually shorter and re- 

 flexed ; rachis dark brown or black ; sori oblong, short, 

 borne about midway between the midrib and the margin 

 of the pinnae, nearly or quite straight. 



On limestone, Virginia t<> Fl->ri<!.i \vt-t t. MiMoori. TexiM 

 and Nt-\v Mi-.\io>. iscendl in Virginia. AUoia 



Mexico. June-Oct. 



4- Asplenium platyneuron (I/.) Oakes. 



Acrostichum platyneuros 1,. Sp. PI. 1069. 1753- 

 Asplenium ebeneum Ait. Hort. Kew. 3: 462. 1789. 

 Asplenium platyneuron Oakes ; D. C. Eaton, Fern^ N. 

 A. i: 24. 1879. 



Rootstock short. Stipes densely tufted, pur- 

 plish-brown and shining, i'-4' long; leaves lin- 

 ear, 8 / -i5 / long, X / -i^ / wide, firm, once pinnate, 

 the rachis chestnut-brown ; pinnae 20-40 pairs, 

 lanceolate, subfalcate, alternate or partly so, ses- 

 sile, crenate, serrate or incised, auricled on the up- 

 per side at the base and occasionally also on the 

 lower ; lower pinnae gradually smaller and oblong 

 or triangular ; sori 8-12 on each side of the midrib 

 of the pinnae, becoming crowded at maturity. 



On rocks and banks, preferring limestone soil. 

 Maine and Ontario to Florida, west to Colorado, the Ii 

 dian Territory, Louisiana and Texas. Ascends to 4200 

 ft. in North Carolina. July-Sept. 





