110 20. LINDSAY A, §§ ISOLOMA. 



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

 l|-2in. ]., J-^tn. br., linear, entire or very slight]}' 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. li. 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 pinnse. 



*** Fronds hi- or trijnnnatifid, ultimate divisions cuneate. Sp. 31—36. 



_ 31. L. (Iso.) ahitacea, Metten. ; st. strong, erect, 4-6 in. \.;fr. 4-6 in. ]., l|-2 in. br., 

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

 6 to 8 stalked obversely-triangular /im???/., 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. 

 Cat. p. 63. 



Hab. New Caledonia ; gathered by M. Dejslanche. 



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

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

 bipinnatifid ; pinnm 2-3 in. 1., lanceolate, erecto-patent, cut down quite to the 

 rachis below into cuneate innnl., 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 ^««?2ce. — Hk. Sp. 1. p. 217. 



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

 Fiji by Mr. Cairns. 



33. L. (Iso.) micropIit/Ua, Swartz ; rAz^ome creeping, fibrillose ; st. flexuose, wiry, 

 ."-6 in. 1. ; fr. 6-18 in, L, 2-4 in. br., bi- or tripinnatifid ; primary />2n?jce 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. S Gr. t. 194. 



Hab. New Zealand and Temperate Australia. 



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

 in. 1., stout, erect, naked, chesnut-brown, polished ; fr. 12-18 in. k, 6-9 in. br., 

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

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

 broader at tlie 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. ; .^. strong, erect, not prickly or climbing ; ^.tri- 

 pinnatifid ; \owQT pjinna; 12-1.5 in. 1., 6-8 in. br. ; />f?)«^. lanceolate-deltoid, the 

 lower segm. the same shape, 1-1| in. k, -^-l in. br., cut down to the rachis below, 

 the lobes 2-3 lin. br., cuneate ; texture lierbaceous ; swi 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 speciea 

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



