38. ASPLENIUM, DIPLAZIUM. 235 



in. br. ; texture herbaceous, both surfaces bright-green, nearly naked ; rachis 

 slender, straw-coloured, nearly naked ; veins about 6 on each side in the lower 

 lobes, with sori on each reaching two-thirds of the way to the edge, the lowest 

 in. 1. ; invoL broad, brown, tumid. A. Schkuhrii, Hk. tip. 3. p. 251. /3, Oldhami; 

 jr. smaller, lanceolate, 4-G in. 1., 2-3 in. br. ; rachis straw-coloured, polished, naked ; 

 pinnae \-\\ in. L, blunt ; lobes blunt, only 3 veins on a side in each. y,coreanum-; 

 fr. the same size as in /3, but only the lower half pinnate, the rachis and stem 

 rather chaffy and villose. 



Hab. Japan, China, Formosa, Himalayas. The Samoan and Fijian D. congruum, 

 Brack, t. 18, comes very near to this. In a specimen from Mr. Powell, the substance is 

 very thin, the rachis naked, the lobes ^ in. deep, \ in. br., veinlets 5-6 on each side, most 

 of them again forked ; and a similar plant grows in the Sandwich Islands. 



227. A. (Dipl.) Thwaitesii, A. Br. ; rhizome wide-creeping ; st. 6 in. 1., slender, 

 green, densely clothed with strong white woolly hairs ; fr. 1 ft. 1., 4 in. br., with 

 8-10 distant pinnce beneath the pinnatifid apex, the largest 2 in. 1., J- in. br., cut 

 down two-thirds of the way to the rachis in oblong crenulated lobes j in. deep, 

 2 lin. across ; rachis flaccid, villose like the stem ; texture herbaceous ; colour pale- 

 green, and both surfaces also villose ; veins 4 on each side in a lobe, simple ; sori 

 reaching halfway to the edge, the lowest about a line long. Hk. Sp. 3. p+ 250. 

 2nd Cent. t. 45. 



Hab. Ceylon. Intermediate between the preceding and following, 



228. A. (Dipl.) lasiopteris, Mett. ; rhizome wide-creeping ; st. 6-9 in. 1., firm, 

 erect, dark-coloured, villose ;//*. 15-18 in. 1., 6-8 in. br., with 8-10 pinnce on each 

 side below the pinnatifid apex, the largest 3-4 in. 1., 1-1^ in. br., the lower lobes 

 cut down nearly or quite to the rachis, f-| in. deep, f in. br., the point obtuse, the 

 edge distinctly crenate ; texture herbaceous, the dark-coloured rachis and dark- 

 green frond villose on both sides; veinlets 5-6 on each side, simple; lower sori 

 i in. 1. Diplazium, Kunze, Linncea, vol. 17. p* 568. A. tomentosum, Mett. (non 

 fa.)- 



Hab. Canton, Java, and the Neilgherries, well figured by Beddome, t. 160. This is 

 the D. decussatum of English gardens ; but our original specimen from Wallich is .A. japo- 

 nicum. It comes near the two preceding, and the three are well marked by the character 

 of the rhizome. 



229. A. (Dipl.) speciosum, Mett. ; st. tufted, 1 ft. or more 1., firm, erect, straw- 

 coloured or brownish, nearly naked ; fr. 1-2 ft. 1., 8-12 in. br., with 10-20 pairs 

 of pinnce below the pinnatifid apex, the lower ones often stalked, 4-6 in. 1., 1-1 3- 

 in. br., the apex much acuminated, the edge lobed, the lobes reaching down two- 

 thirds of the way to the rachis or more, close, j in. br.., slightly toothed, the base 

 truncate or slightly cuneate ; texture herbaceous but firm ; rachis erect, naked ; 

 veins pinnate in the lobes ; sori slender, reaching nearly to the edge. Diplazium, 

 JBlume. A. acuminatum, Wall., Mett. (non H. & A,}. 



Hab. Malayan Peninsula and Philippines, Java, Hong-Kong. This is nearest .4. sorzo- 

 gonense, but the lobes are broader and not so deep, more herbaceous in texture, and dis- 

 tinctly toothed. A plant from Fiji comes very near this, but the pinnae are fewer, thinner, 

 the lower ones distinctly stalked, and the lobes broader ; and one from Richmond River, 

 Australia, sent by Dr. Mueller, only differs by the lobes being rather broader and shallower. 

 A specimen of Blurne's plant from Miquei quite agrees with Wallich's examples of 

 acuminatum. 



230. A. (Dipl.) Welwitschii, Hk. MSS. ; st. 1 ft. or more 1., firm, erect, straw- 

 coloured, naked ; fr. 18 in. 1., 9 in. br., the lower pinnce 6-7 in. 1., 1-1^ in. br., 

 the point acuminate, the edge slightly lobed above, cut down in the lower part 

 half or two- thirds of the way to the rachis ; the lobes not quite contiguous, in. br., 

 nearly entire, the base sessile, truncate ; texture herbaceous ; veins distantly pin- 



