110 20. LINDSAY A, ISOLOMA. ( >y 



scales ; st. stout, erect, 4-6 in. 1. ; fr. 12-24 in. 1., 3-4 in. br., simply pinnate ; pinnce 

 1 J-2 in. ]., -| in. br., linear, entire or very slightly toothed towards the point, which 

 is acute in the fertile, bluntly rounded in the barren frond ; texture coriaceous ; 

 rachis pubescent ; sori in a continuous line along both edges. Hk. Sp. \. p. 210. 

 t. 69. B. L. acutifola, Desv., oldest name. 



Hab. Malayan Peninsula, southward to Tropical Australia, Mauritius, and gathered 

 by the Livingstone Expedition at the mouth of the Kongone river. This has quite the 

 habit of Nephrolepis acuta, and similar white cretaceous dots on the upper side of the 

 very deciduous pinnae. 



*** Fronds bi- or tripinnatifid, ultimate divisions cuneate. Sp. 31-36. 



31. L. (Iso.) alutacea, Metten. ; st. strong, erect, 4-6 in. 1. ; fr. 4-6 in. 1., l|-2 in. br., 

 bipinnatifid, lower branches wiry, flexuose, 2-3 in. L, erecto-patent, furnished with 

 6 to 8 stalked obversely-triangular pinnl., which are about 3 lin. br., 4 lin. deep, 

 2- to 3-lobed, and the lobes again crenate at the apex ; texture coriaceous ; vena- 

 tion flabellate ; sori in a line across the point of the pinnules. Metten. Fil. Nov. 

 Cal. p. 63. 



Hab. New Caledonia ; gathered by M. Deplanche. 



32. L. (Iso.) trichomanoides, Dry. ; rltizome creeping, fibrillose ; st. 4-6 in. 1., 

 slender, wiry, polished, chesnut-brown ; fr. 4-9 in. ]., 2-3 in. br., ovate-oblong, 

 bipinnatifid ; pinnae 2-3 in. L, lanceolate, erecto-patent, cut down quite to the 

 rachis below into cuneate pinnl., which are again broadly lobed on the upper 

 edge ; texture herbaceous ; venation obscure, flabellate ; sori in a continuous mar- 

 ginal line. Hk. Sp. 1. p. 218. (3, L. Lessonii, Bory ; simply pinnate, with 

 broadly-lobed linear-lanceolate pinnce. Hk. Sp. \. p. 217. 



Hab. New Zealand, Van Diemen's Land, and N. S. Wales ; gathered also lately in 

 Fiji by Mr. Cairns. 



33. L. (Iso.) microphylla, Swartz ; rhizome creeping, fibrillose ; st. flexuose, wiry, 

 3-6 in. 1. ; fr. 6-18 in. 1., 2-4 in. br., bi- or tripinnatifid ; primary pinnce distant, 

 flexuose, 1-4 in. 1. ; pinnl. entire, or cut down to the rachis into several obversely 

 triangular lobes, which when fertile are often not more than 1 lin. br. ; texture 

 herbaceous ; venation flabellate ; sori in a continuous marginal line. Hk. Sp. 1. 

 p. 218. Hk. & Gr. t. 194. 



Hab. New Zealand and Temperate Australia. 



34. L. (Iso.) elongata, Lab. ; rhizome stout, creeping, densely fibrillose ; st. 6-9 

 in. L, stout, erect, naked, chesnut-brown, polished ; fr. 12-18 in. L, 6-9 in. br., 

 ovate-deltoid, tripinnatifid ; lower pinnl. lanceolate-acuminate, 2-3 in. 1., f in. br., 

 cut down nearly to the rachis, but only slightly above into lobes which are 

 broader at the apex than the base, and sometimes quite obversely triangular ; 

 texture coriaceous ; veins prominently raised on the under side ; sori occupying 

 nearly or quite the whole margin of the lobes. Hk. Sp. 1. p. 213. 



Hab. New Hebrides, New Caledonia, Isle of Pines. 



35. L. (Iso.) retusa, Metten. ; st. strong, erect, not prickly or climbing ; fr. tri- 

 pinnatifid ; lower pinnce 12-15 in. L, 6-8 in. br. ; pinnl. lanceolate-deltoid, the 

 lower segm. the same shape, l-l in. L, -| in. br., cut down to the rachis below, 

 the lobes 2-3 lin. br., cuneate ; texture herbaceous ; sori narrow, marginal, 

 occupying the whole breadth of the lobes. Davallia, Cav. Hk. Sp. 1. p. 188. 

 t. 52. A. L. cuneifolia, Presl. Hk. Sp. 1. p. 219. 



Hab. Philippine Islands, Amboyna, Solomon's Isles, New Caledonia. This species 

 and No. 31 in particular in texture and habit approximate to Stenoloma very closely. 



