ASPLENIUM,; 489 



2 VOWS. , Sometimes (A <ry?£?M?B Both.?) the pinnjiles are much 

 less : connected, moderately cut, have a narrow iitt^chraent, .and 

 lobes with more but, conniveiiti teeth^T — There, rare innumerable 

 subvarieties. — Wet 'shady places. P. VI, VII,, ,^ E.S.I. 



8. Asple'niitm imn. Spleen wort. , 



* Ultimate subdivisions with a distitiot midvein.^' 



AsPLBNiUM Newm. ' 



, 1. A. fontdmtm (Presl) ; frond linear-lanceglate, bipinnate, 

 pinnae oblong-oyate, pinnules obovate-cuneate withf^wspinous- 

 mucronate tedth. — K B. 2024. — Fronds about 4 ill. long. — 

 Formerly on Amersham Church, Bucks. . Wybourn, ^Y^stm. 

 Hudscm. Northumberland. J. Backhouse. Between Tan y 

 Bwlch and Tremadoe, Merionethshire. Ashford, Hants. 'P.' 



VI.— IX.' ',„'-•; ■ • ■, E_ 



2. A. laneeoldtum (Huds.) ;, fronds lanceofate bipinnate, pin- 

 nules obovate deeply and sharphr toothed, or lobed, clusters shirt 

 nearly marginal. — i.B. 240. JVT 249.— Fronds sometimes nearly 

 linear and simply pinnate, always narrpwed at th^base; _ ^Clus- 

 ters, oblong, ultimately rather confluent into roundish masses.— 

 Bocks and walls, rather rare. P. VI. — IX. B..I. 



3. A. Adiantum-nigrum (L.) ; fronds ovate-triangular tsi tri-: 

 angular-prolonged twice or thrice pinnate, pinnte and pinnules 

 triangular sharply toothed, clusters long central. — S. B. 19.50. 

 iV. 225. — Clusters 2 or 3 times as long as in the preceding, 

 placed near the midrib and ultimately conflue^ntin oblong masses 

 often covering the whole under surface of the pinnule. — a; 

 fronds about as long as the stipe ovate-triangular, pinnas aln.d 

 pinnules triangular, ultimate subdivisions blunt. — 3. A. ohtusum 

 (Willd.) ; pinnules and lobes very broad more acutely dentate. 

 ^—y. A. acutum (Bory); fronds much shorter than the stipe trian- 

 gular-prolonged, pinnae and pinnules lanceolate-f^ijteuuate, ulti- 

 mate subdivisions very acute. — Bocks and walls. ^- "Serpen- 

 tine rooks of Oabrach, Aberdeenshire." T. Moore, y. South- 

 west of Ireland. P. VI.— IX. Black Spleenwort. E; Si'I. 



4. A. Trichom'anes (L.); frond linear piimate,pinn8e roundish- 

 ovate crenate, veins forked below the clusters. — M B. 576. N. 

 28B,-^Jlachis black, keeled beneath. Pinn« scarcely oblique ; 

 both edges rounded and crenate except at the base, upper 

 often bluntly auricl'ed below.— ^j3. A. anceps (Sol. ?) ; pinnse ob- 

 long blunt wedgesha^ed below upper edge ajid gnd',crenate-den- 

 tateloweir entire. Pmnaa oblique, lower edge nearly straight.; 

 lower pinna much the smaller. — A curious variety is occa^ionailly 

 found with its pinnse deeply but irregularly pinnatifid witft 



