236 38. ASPLENIUM, §§§§§ DIPLAZITJM. 



nate in the lobes, with the lower veinlets branched ; sori short, slender, distant 

 from both edge and midrib. 



Hab. Angola, Welwitsoh, 100. — This comes nearest the preceding in habit, but the 

 lobes are broader and the sori remarkably short. 



231. A. (Dipl.) crenulatum, Baker ; caiid. erect, subarborescent ; St. tufted, 

 12-18 in. 1., firm, erect, hardly at all scaly below, but slightly furfuracepus ; fr. 

 2-3 ft. 1., 9-15 in. br., with 15-20 pinnce on each side below the pinnatifid apex, 

 the largest 6-8 in. 1., 1-1 J in br., the point acuminate, the edge cut down in the 

 lower part half or two-thirds of the distance to the rachis ; lobes oblong, \ in. 1., 

 4 lin. br., slightly toothed ; textwre herbaceous ; rachis firm, nearly naked ; veins 

 6-8 on a side in each lobe ; lowest sori ^ in. 1. — D. crenula,tum, Liebm. A. striae, 

 tum, Mett. Aspl. p. 186. and Griseb. {non Hk.). A. dubium, Hk. (in part)." 



Hab. Cuba and Mexico to Brazil and Ecuador. — We take our description here from a 

 plant grown at Kew, with which Liebman's specimens and the description of Mettenius 

 quite correspond. In the typical plant the pinns are not more than pinnatifid, bat in 

 Grisebach's stnatum j3 and Liebman's D. amplmm, the lower segments are distinctly 

 separated, 1^-2 in. 1., ^ in. br., and broadly inciso-orenate, and the lower sori 2 lin. 1. 

 The W. Indian D, grammitoides, Fde, Fil. Ant. t. 11, is a compound variety with a 

 thin involucre. 



232. A. (Dipl.) Lindbergii, Mett. ; st. tufted, 1-1-|^ ft. 1., dark reddish-brown, 

 firm, erect, scaly at the base ; fr. 18-24 in. 1., 9-12 in. br., the apex pinnatifid, 

 below this about 12 pinnce on each side, the lowest 6-8 in. 1., 1-1 J in. br., the point 

 acuminate, the edge cut about halfway down into close subimbricated blunt inciso- 

 crenated lobes J in. br. ; tescture herbaceous ; rachis reddish-brown, naked ; veins 

 copiously pinnated, veinlets 6-8 on each side ; sori slender, confined to the inner 

 half of the lobes, and not touching the midrib ; inwl. very narrow and tender, 

 almost abortive. — Mett. Fil. Nov. Gran. p. 236. A. subnudum, Ka/rst, 



Hab. Mexico to Brazil. — Not unlike the preceding in habit, but sori and involucre 

 peculiar. 



233. A. (Dipl.) sorzoffonense, Presl ; St. tufted, 4-6 in. 1., densely fibrillose below ; 

 fr. 1-2 ft. 1., 8-12 in. br., with numerous ^mra«e on each side, the lower ones sessile, 

 4-6 in 1., 1 in. br., cut down regularly throughout two -thirds of the way down 

 to the rachis into spreading blunt subentire lobes about 2 lin. br. ; texture herba- 

 ceous ; rachis slightly fibrillose ; veinlets of the lobes simple, with sori in regular 

 rows reaching from the midrib to the edge. — Hk. Sp. 3. p. 252. Hypochlamy s, Fie. 



Hab. Himalayas (to 8-10,000 ft.), Philippines, and Malaccas. — Nearest A, tpedomm, 

 but the lobes narrower and deeper, with parallel edges and a space between them. A 

 plant from Borneo has a very fibrillose rachis, and the lobes of the lower pinnae quite 

 distinct, \\ in. 1., \ in. br. 



234. A. (Dipl.) costale, Swartz ; st. 1 ft. or more 1., tufted, stout, erect ; fr. 

 ample, the apex pinnatifid, with oblong entire lobes, the lower part copiously 

 pinnate, -with pinnce often 1 ft. ]., 3 in. br., cut down half or two-thirds of the 

 way down to the rachis into blunt slightly inciso-serrated lobes f-^ in. br. ; 

 texture subcoriaceous ; veinlets oi the lohes usually once forked, with broad copious 

 sori which fall considerably short of the edge. — ;8, A. JDesvauxii, Mett. ; lobes of 

 the pinnae acute, sometimes reaching down nearly to the rachis, 2 in. 1., 1 in. br. 

 —Hk. Sp. S.p. 254. D. ApoUinaris, F&e, Fil. Ant. tab. 10. fig. 1. 



Hab. West Indies southward to Peru. — This differs from all the preceding by its very 

 large pinnse and lobes. The extremes of the two forms look very diflFerent, but are 

 connected by intermediate stages. 



235. A. (Dipl.) Franconis, Mett. ; st. 1 ft. 1., firm, tufted, erect, greyish, scaly 

 below : fr. 1-2 ft. 1., 9-16 in. br., with numerous pinnae on each side, the lower 



