] 30 24. HYPOLEPIS, EUHYPOLEPIS. 



stem ; under surface nearly naked ; sori small, placed at the base of the sinuses. 

 Hk. Sp. 2. p. 66. t. 90. C. 



Hab. Jamaica, Martinique, Venezuela, and banks of the Amazon. Cuming's Philip- 

 pine plant, referred here in " Species Filicum," is Dicksonia moluccana. 



6. H. hostilis, Presl ; st. 1-2 ft. 1., erect, tomentose, scabrous ; fr. ample, 

 quadripinnatifid ; lower pinnae 6-12 in. 1., 4-6 in. br., ovate-lanceolate ; pinnl. 

 lanceolate ; segm. -f in. 1.; in. br., cut down nearly to the rachis throughout 

 into numerous linear-oblong toothed ultimate divisions ; texture thinly herba- 

 ceous ; rachises tomentose ; sori very small, placed against the sinuses of the 

 ultimate divisions. Hk. Sp. 2. p. 69. 



Hab. Jamaica, Cocos Island, and Peru. A more delicate plant than H. repens, with 

 smaller and more deeply divided ultimate lobes, in which respect, as well as in general 

 habit, it Tery closely resembles the South African If. anthi-iscifolia. 



7. H. Purdieana, Hk. ; st. 6-9 in. 1., erect, strong, bright-brown, scabrous ; 

 fr. 9-12 in. 1., 3-4 in. br., lanceolate, tripinnatifid ; largest pinnae 2 in. 1., 1 in. 



br., lanceolate-deltoid, cut down below to a narrowly-winged rachis, into 

 numerous linear-oblong deeply crenato-pinnatifid pinnules; texture herbaceous ; 

 rachis scabrous and densely clothed with brown filiform scales ; costb also 

 paleaceous ; sori nearly a line across, roundish, placed against the sinuses of the 

 pinnules. #. Sp. 2. p. 69. t. 91. B. 



Hab. New Granada ; gathered by Mr. Purdie. I give this and the six preceding 

 species with great doubt as to how far they are distinct from one another, and with a 

 suspicion that some of them at least, like other plants which have been placed in Hypo- 

 lepis, will prove not really distinct from Polypodium rugulosum. With regard to the 

 present one, for instance, Dr. Grisebach writes (Flora Brit. West Indies, p. 67), " Not to be 

 distinguished from P. rugulosum but by the specially transformed involucral appendages, 

 and probably passing into that widely-ranging species." Sir W. Hooker has expressed 

 the same doubt with regard to H. distans ; and reference may be made also, in connec- 

 tion with the same point, to Dr. Hooker's remarks in the Floras of New Zealand and 

 Tasmania. 



8. H. parallelogramma, Hk. ; st. 2-4 ft. 1., strong, scabrous and prickly, but 

 scarcely pubescent; fr. 10-20 ft. 1., deltoid ; pinnae 1-3 ft. 1., ovate-lanceolate; 

 pinnl. 6-9 in. 1., not much over 1 in. br., linear-lanceolate, with numerous linear- 

 oblong segm. about 9 lin. 1., 3 lin. br., which are sinuato-dentate and have about 

 their own breadth between them ; texture subcoriaceous ; rachises like the stipes ; 

 sori sometimes 12 to a segm., placed at the sinuses. Hk. Sp. 2. p. G5. t. 98. A. 

 Cheilanthes scabra, Karst. C. Radula, Kunze. 



Hab. Tropical America, from Guatemala southward to Brazil and Peru. The segments 

 are much larger than in any of the preceding, more coriaceous in texture, with the sides 

 parallel for some distance and the point blunt, the veins beneath prominent. 



9. H. milkfolium, Hk. ; rhizome stout, wide-creeping ; st. about 6 in. 1., erect, 

 pale-brown, glossy, scarcely scabrous; fr. 1 ft. or more 1., 4-6 in. br., ovate- 

 triangular, quadripinnatifid ; lower pinnae erecto-patent, 4-6 in. 1., 1-2 in. br. ; 

 pinnl. ovate-deltoid, their segm. cut down nearly to the rachis into several small 

 sharply-toothed lobes ; texture herbaceous, under surface of the frond slightly 

 hairy ; rachises of the pinnae winged ; sori small, roundish, placed in the lower 

 sinuses. Hk. Sp. 2. p. 68. t. 95. B. 



Hab. New Zealand. A much smaller plant than H. tenuifolia, with the ultimate 

 segments more frequently and sharply toothed. 



10. H. Bergiana, Hk. ; st. tufted, 2 ft. ]., strong, erect, dark chesnut-brown, 

 tomentose ; fr. 12-18 in. 1., 6-9 in. br., deltoid, quadripinnatifid ; pinnce deltoid ; 

 pinnl. ovate-deltoid ; segm. ovate, -f in. 1., J-f in. br., cut down to the rachis 



