17. TRICHOMANES, EUTRICHOMANES. 73 



5. T. reniforme, Forst. ; st. 4-8 in. 1., naked, wiry ; fr. orbicular, reniform, 

 entire, with a deep sinus at the base, 2-4 in. br. ; spurious venules none ; sori 

 often encircling the whole of the outer margin ; recept. much exserted, stout, and 

 covered with capsules. Hk. Sp. 1. p. 115. Hk. $ Gr. Ic. Fil. t. 31. Exot. 

 Ferns, t. 2. Crepidomanes, Presl. 



Hab. New Zealand. This is the only species in which the frond has four layers of 

 cellules, and the habit is quite peculiar. 



6. T. lineolatum, Hk. ; st. none or short, tomentose ; base of the fr. nar- 

 rowed very gradually below ; fr. ^-1 in. 1., f in. br., suborbicular or obovate- 

 cuneate, nearly entire or subpalmate, or rather deeply pinnatihd, with linear- 

 oblong lobes, subopaque and prominently veined when dry \ spurious venules 

 none ; sori few, subterminal ; invol. sunk in the frond, the mouth distinctly two- 

 lipped. Hemiphlebium, V. D. B. 



Hab. Cuba, Jamaica, and Merida. Allied in habit to T. reptans and punctatum, but 

 without spurious venules. 



7. T. peltatum, Baker ; rhizome wiry, slender, wide-creeping, tomentose ; fr. 

 quite sessile, attached to the rhizome near its centre or towards the base, subor- 

 bicular in general outline, ^-1 in. each way, delicately membranaceous in texture, 

 the margin undulated, not thickened, sometimes irregularly cleft rather deeply ; 

 veins close, regularly dichotomous at a small angle, with numerous interrupted 

 spurious venules between them at the margin and towards the centre ; sori 1 to 3, 

 scattered, firm in texture, the tube more or less exserted, with a very much 

 dilated spreading slightly two-lipped mouth. Baker in Linn. Proc. inedit. cum 

 icone. 



Hab. Samoa, Rev. T. Powell; New Caledonia, Vieillard, 2166. A very curious 

 novelty, quite peculiar in habit. " The different branches of the caudex," writes the 

 discoverer, "run upwards, but so closely together, that the margins of the fronds overlap 

 each other. The fronds all lie flat upon the tree, so that the whole fern has much the 

 appearance of a delicate foliaceous lichen or frondose Jungermannia." 



8. T. membranaceum, L. ; fr. subsessile, membranaceous in texture, suborbi- 

 cular in general outline, 2-3 in. br., more or less deeply cut from the circum- 

 ference towards the centre, with broad rounded or narrow lobes, the margin 

 fringed with a double series of peltate scales ; spurious venules copious ; invol. 

 numerous, placed round the edge of the frond, the tube sunk, the mouth two- 

 lipped. Hk. Sp. l.t. 115. Exot. Flora, t. 76. Lecanium, V. D. B. 



Hab. Tropical America, both the islands and continent. Here, although the frond 

 is so thin, there are two or three layers of cellules, and the curious peltate scales of the 

 frond are unique. The habit is that of Padina pavonia amongst Algce or a broad-lobed 

 Flu&tra. 



9. T. cuspidatum, Willd. ; fr. distinctly but very shortly stalked, about ^ in. 

 br., the outer edge rounded and more or less lobed, the base truncate or more or 

 less cuneate ; spurious veins distinct ; invol. 1 to 6, the tube sunk in the frond, 

 the mouth dilated, but scarcely two-lipped. Hk. Sp. 1. p. 119. Microgonium, 

 V. D. B. T. Bojeri, Hk. Sp. 1. p. 116. Hk. $ Gr. Ic. Fil. t. 155. 



Hab. Mauritius and Bourbon. 



10. T. Motleyi) V. D. B. ; fr. copious, imbricated, sessile, about \ in. br., 

 cordate-orbicular, nearly entire ; spurious veins indistinct, the solitary exserted ; 

 sorus placed in a deep apical sinus, the mouth spreading and much dilated, but 

 entire. 



Hab. Borneo, discovered by Messrs. Barber and Motley ; New Caledonia, Lenormand. 



