20. LINDSAYA, §§ ISOLOMA. 109 



tant, distinct ; soriis continuous along tlie upper and outer edge.— AV;;?, Lin7t. 30. 

 2^. 79. 



ITiih. Tarapota, East Peru, Spruce, 4023. —Nearest small forms of strida, but texture 

 much less coriaceous, and segments narrower and closer. The plant called Z. Sprucei 

 in our first edition is now found to be identical with DavaUla 7neifoh'a, 11. B. K., and 

 our L. Parhldi to be an abnormal form of AcrosticJnun sorbifoUuni, like that figured at 

 tab. .^6 of the first volume of Hooker's Species Filicum under the name of Davallia 

 achillcifolia. 



25. L. MacgilUwayi, Ciivruth. ; st. and rachis naked, red-stramineous ; fr. 

 deltoid, liii)innate, 1-1/j ft. 1.; pinnm 8-9-jugatc, lowest f-1 ft. 1., 1 in. Lr.; 

 phinl. stiilked, rhomboid-oblong, entire, \ in. 1., the upper l)order straight, the 

 lower rather ascending, 20-30-jugate, alternate ; texture subcoriaceous ; surfaces 

 green, naked ; veins distinct, fiabellate ; sorus continuous along upper and outer 

 edge. — Fl. Vit. p. 337. 



tiab. Isle of Pines, MacgUllvmy ; New Caledonia, Herh. Maclcay ; and a closely-allied 

 plant with smaller, more cuneate pinnules from Viti, Richards. Habit of Kirhii, and 

 large forms of guianensis. 



§§ Isoloma,, J. Smit/i . Pinnce equilateral ; veins free. Sp. 2G-3.5. ^Jiis section 

 in habit and texture resemhies Pteris rather than Adiantum, a7id the cuneate species 

 approximate very closely to Stenoloma. 



* Fronds simple. Sp. 2G-27. 



2G. L. (Iso.) reniformis, Dry. ; st. wiry, flexuose, 4-G in. 1., black, polished ; 

 fr. 2-2^^ in. across, orbicular-reniform, with a deep basal sinus ; texture coriaceo- 

 membfanaceous, not pellucid ; sori continuous all round the edge, except in the 

 sinus.— HL Sp. 1. 2>' 203. 



Hab. Guiana and the Amazon valley. 



27. L. (Iso.) sagittata. Dry. ; st. wiry, flexuose, 4-6 in. 1,, black, polished ; /;•. 

 sagittate-acuminate, Avith a deejJ basal sinus, 2-4 in. across, sometimes lobed ; 

 texture as in the preceding, and the sori similarly continuous. — Hk. Sp. 1. p. 203. 

 BL & Gr. Ic. t. 87. 



Hab. Guadeloupe and French Guiana. 



** Fronds simply pinnate, with linear pinnce. Sp. 28-30. 



28. L. (Iso.) Walkerw, Hk. ; rhizome creeping, paleaceous ; st. wiry, erect, 

 black, polished, G-12 in. 1. •,fr. 6-12 in. 1., 2-4 in. br., simply pinnate ; pitince H-2 

 in. 1., |- in. br., entire, equilateral, erecto-patent, with several times their breadth 

 between them ; texture coriaceous ; rachis nailed, shining, brownish-black ; sori 

 in a continuous line along both edges. — Hk. Sp. 1. />. 209. t, 69. A. 



Hab. Ceylon and island of Banca, east of Sumatra. 



29. L. (Iso.) divergens, Wall. ; rhizome creeping, wiry, fibrillose ; st. wiry, erect, 

 black, polished, 4-6 in. 1. ; fr. 6-12 in. 1., 1^-2 in. br., simply pinnate ; pinnce |-1 

 in. 1., 2-3 lin. br., obliquely truncate at the base below, auricled at the base above, 

 the margin entire, the point bluntish ; texture coriaceous ; rachis naked and 

 polished ; sori in a continuous line along both edges. — Hk. Sp. \. p. 210. Hk. 

 dj Gr. Ic. t. 226. 



Hab. ISIalayan Peninsula and Borneo. — Here the pinnte are placed close together, and 

 spread from the rachis at a right angle. 



SO. L. (Iso.) lanuginosa, Wall. ; rhizome stout, creeping, clothed with filirillose 



