20. LINDSAYA, § EULINDSAYA. 107 



a simply pinnate point, and several pairs of erecto-pacent branches, some of 

 which are again a little branched below ; pinnl. 4 lin. br., 3 lin. deep, nearly- 

 entire or once or twice cleft from the upper margin, placed close together, but 

 not iml)ricated ; texture thickly pellucido-herbaceous ; sorl in a continuous line 

 except when interrupted by the lobes. — L. Gardneri, Hk. Sp. \. p. 213. t. 65. B. 



Hab. Organ Mountains, Brazil ; gathered by Burcliell and Gardner. — Allied in habit 

 to L. jlabcUulata, but the pinnules are smaller and more divided. 



10. L. flabeUiiIata, Dry. ; rhizome short-creeping ; st. wiry, erect, brownish- 

 black, polished, 4-12 in. 1. ; fr. 6-12 in. 1., simple or with one or several pairs of 

 lateral branches ; pinnl. ^-\ in. 1., about J in. deep, the lower line nearly straight 

 or decurved, the upper rounded, entire, or lobed, the point broadly rounded ; 

 texture pellucido-herliaceous ; racMs naked ; venation fiabellate ; sori in a con- 

 tinuous line except when interrupted by the lobes. — Ilk. Sp. l.p, 211. t. 63. C. 

 Hk. (& Gr. Ic. 75. Adiantum orbiculatura, Lam., oldest name. 



Hab. N. Hindostan, S. E. China, Malayan Peninsula and Islands, Ceylon, N.Australia. 

 — Very variable in the size of the pinnje and in ramification. Var. gigantea of Hooker is 

 an abnormal state, with some of the pinn?eof the central rachis 1-2 in. 1., and lengthened 

 out to a narrow point. L. tenera, Dryander, Hk. Sp. 1. p. 211. (L. striata, Blume), only 

 differs by its thinner texture. In this and the preceding the lower pinna are often nearly 

 as deep as broad. 



17. L. trapeziformis. Dry. ; rhizome short-creeping; st. strong, erect, 6-12 in. I.; 

 fr. 6-15 in, 1., with a long entire point and 1 to 4 pairs of rather rigidly erecto- 

 patent branches, which are often 6-12 in. 1. ; pinnce f-lj in. L, j-|- in. deep, the 

 lower line nearly straight or curved upwards or downwards, the upper rounded, 

 entire, closely placed, but scarcely imbricated ; texture pellucido-herbaceous ; sori 

 in a continuous line round the upper margin. — Hk. Sp.l.p. 214. L. quadran- 

 gularis, Haddi, Hk. Sp. 1. p. 214. L. horizontinalis, Hk. Sp. 1. j). 214. t. 62. B. 

 L. arcuata, Kunze, Hk. Sp. 1. p. 215. L. caudata, Hk. Ic. PL t. 058. Sp. 1. />. 

 215. — /3, L. laxa, Kunze, upper margin broadly lobed, so that the line of the fruit 

 is more or less interrupted. L. Klutzschiana, Moritz. — y, L. falcata, Willd. ; fr. 

 not branched ; pinnce often very large. L. Leprieurii, Hk. Sp. \. p. 208. t. 62. D. 



Hab. Tropical America, from Cuba and Guatemala southward to Rio Janeiro ; Ceylon, 

 Malayan Peninsula and Islands. — L. caudata is a large handsome Ceylonese form, with 

 more branches than usual; L. arcuata, a form with long narrow falcate pinnules; and 

 L. L'llerminteri, ¥6e, a plant from Guadeloupe, with the pinnules broadest at the outer 

 edge and the upper margin concave. Adiantum, Lancea, L., is the oldest name. 



18. L. lornecnsis, Hk. MSS. ; rhizome short-creeping, paleaceous; St. strong, 

 erect, polished, 9-15 in. 1. ; //•. 12-18 in. 1., 9-12 in. br., with a long unbranched 

 apex, and 6 to 9 erecto-patent branches on each side, which are 6-9 in. 1. ; pinnl. 

 3-4 lin. 1., l|^-2 lin. deep, closely placed or even imbricated, quite entire, the 

 outer edge blunt; texture pellucido-herbaceoii?; veins prominent; sori in a 

 continuous marginal line. 



Hab. Forests of Borneo ; gathered by Messrs. Lobb and Barber. — This comes very 

 near L. Guianensis in habit, but the sori are quite marginal. 



19. L. giiianensis, Dry. ; rhizome short-creeping ; 5^. 6-12 in. 1., rigid, erect, 

 polished ; fr. 1-2 ft. 1., with an entire point and 1 to 6 pairs of lateral erecto-patent 

 branches, 6-9 in. 1., which are sometimes again branched ; pinnl. ^ in. L, J in. 

 br., not lobed and the outer edge bluntly rounded, closely placed an"d sometimes 

 imbricated ; texture subcoriaceous ; veins prominent beneath ; sori in a contin- 

 uous line, with the outer valve produced, but altered in texture. — Hk. Sp. 1. 

 p. 216. t. 62. A. 



Hab. Tropical America from Jamaica southward to Rio Janeiro. — This is inter- 



