4. CYATHEA. 21 



in its much- petiola ted pinnules resembling some species of IJemitelia. Caudex 18 ft. high, 

 very slender, denudate. 



25. C. microphylla, Mett. ; caud. 4 ft. high ; st. and rachises very deciduously 

 ferrugineo-tomentose ; fr. 2-3 ft. long, oblong-ovate, acuminate, tripinnate ; 

 prim, pinnae sessile, broad-oblong, acuminate ; second, ones similar to them but 

 smaller, crowded ; pinnl. small, scarcely 2 lines 1., ovato-oblong, deeply pinna- 

 tifid ; lobes oblong, obtuse, single-veined, entire ; sorus solitary at the base of the 

 veinlet ; invol. globose, breaking irregularly into 3-4 portions. Mett. in Lechl. F. 

 Per. p. 23 ; Hk. 2nd Cent, of Ferns, t. 99. 



Hab. Andes of Peru and Ecuador, Lechler, Jameson, Spruce. A remarkable and 

 most distinct species, with very compound fronds, and the smallest pinnules of any 

 species of the genus. 



ft /Species of tropical and subtropical Africa, including the adjacent islands, 

 Madagascar, Mauritius, Bourbon, Seychelles, SfC. Sp. 26-34. 



26. C. Dregei, Kze. ; unarmed, or only rough with small tubercles at the base 

 of the St., and there paleaceous with rather large, lanceolate-subulate, glossy, 

 ferruginous scales ; fr. bipinnate ; pinnl. sessile, 2-3 in. 1., glabrous or a little 

 arachnoid at the base beneath, narrow-oblong, acuminate, deeply pinnatifid ; 

 lobes oblong-ovate, subfalcate, obtuse, more or less serrated ; invol. fragile, 

 opening at the top and forming a cup with a small slightly irregular margin. 

 Hk. Sp. -[.p. 23. t. 10. B. and t. 17. A. (lobes more serrated). C. Burkei, Hk. 

 Sp. 1. 1. 17. B. ; lobes of the pinnules rather broader. 



Hab. S. E. Africa, Natal, Macalisberg, as far as the Zambesi ; Moramballa, alt. 

 3,000 ft., Livingstone, Kirk ("caudex 4 ft. high"). The only Cyathea, I believe, inha- 

 biting South Africa, but not extending to the extreme south. 



27. C. Manniana, Hk. ; caud. 30 ft. 1. ; st. and rachises pale-brown, glossy, 

 muricate, glabrous ; fr. subcoriaceous, glabrous, tripinnate ; prim, pinnce 2 ft. 1., 

 8 in. w. ; second, pinnce | in. w., sessile oblong, pinnatifid only towards the 

 narrow acuminated apices ; pinnl. narrow-oblong, falcate, acute, serrated ; veins 

 forked, not prominent ; sori rather large, few, mostly on the lower half of the 

 pinnl., and mixed with ovate, fringed scales ; invol. lax, deep-cupshaped, but 

 breaking down at the margin, and subpersistent. 



Hab. Fernando Po and Cameroon Mountains, alt. 3-4,000 ft., G. Mann. Quite 

 different from any other tropical African Cyathea I am acquainted with. 



28. C. Welwitschii, Hk. ; caud. 20-25 ft. 1. ; st. scarcely any (2-3 in. 1. in 

 my specimens), as thick as a swan's quill, castaneous, paleaceous, with large, 

 subulate, firm, glossy scales, tuberculato-muricate, as is the base of the rachis, the 

 rest glabrous ; rachis also castaneous ; fr. 3 ft. and more 1., subcoriaceous, very 

 dark-green and slightly hairy above, paler and more villous with spreading 

 hairs beneath, ovato-lanceolate, contracted below and there bearing numerous 

 dwarfed pinnce, bipinnate ; prim. pinn. 6 in. 1., 1 in. w., sessile, pinnatifid only at 

 the short acuminate apex ; pinnl. and lobes very patent, oblong and obtuse, sub- 

 falcate, strongly crenato-serrate ; veins prominent beneath, forked ; sori mostly 

 near the base of the pinnl. at the forking, and near the costule ; invol. shallow- 

 cupshaped (possibly imperfect), surrounding the whole base of the sorus ; costce 

 on both sides densely and subferruginously villous. 



Hab. W. Africa, Island of St. Thomas, in the Bight of Biafra, alt. 3-7,000 ft., Welwitsch, 

 n. 66, G. Mann. Remarkable for the contraction of the lower portion of the frond, 

 formed by dwarfed pinnae, which extend nearly to the base of the stipes : thus the fronds 

 are subsessile. 



29. C. Camerooniana, Hk. ; st. 1-2 ft. and more 1., paleaceous with appressed, 

 subulate scales at the base, scarcely asperous, and, as well as the rachis (p&leaceo- 

 hirsute upwards only) rufo-castaneous ; fr. 4 ft. or more 1., 14-16 in. w., sub- 

 coriaceo-membranaceous, bipinnate, quite glabrous, above dark green, paler 



