4. CYATHEA. 17 



5. C. Serra, W. ; st. thicker than one's finger, more or less muricated (as well 

 as the rachis), densely paleaceous with large whitish scales 1-1^ in. 1. ; fr. 

 bipinnate ; pinnl. lanceolate, deeply pinnatifid, 6-8 in. 1., lanceolate, acuminate, 

 deeply pinnatifid ; lobes linear-oblong, acute, serrated, falcate, glabrous ; rachis 

 and costce slightly hairy ; sori generally covering the whole of the lobes ; invol. 

 very thin and membranaceous, at length forming a shallow cup, entire or more 

 or less torn at the margin. Hk. Sp. \.p. 17. t. 9. A. 



Hab. W. Indies, Brazil, Mexico. Guatemala ?, Salvin & Godman (not at all 

 muricated). 



6. C. insignis, Eat. ; st. very paleaceous at the base, with long, glossy, subulate 

 scales ; fr. ample, coriaceous, glabrous, dark-green, glaucous beneath, all the 

 rachises and costce beneath muricated ; prim, pinnae 8 ft. 1. ; second, ones 7-8 

 in. 1., ^-| in. w., elongato-oblong, finely acuminated, sessile, pinnatifid nearly to 

 the costa ; lobes oblong-falcate, obtuse, quite entire, the margin slightly reflexed; 

 sori copious ; invol. firm-membranaceous, cinnabar-brown, sub-pruinose (with a 

 glaucous tint), often breaking down into 4 subequal valves. Eat. in Fil. Wright, 

 et Fendl. p. 215. C. princeps, J. Sm. C. Bourgsei, Fourn. 



//*< tMt/*_ 

 Hab.^ Jamaica, on St. Catharine's Peak ; elev. 5,000 ft., Wilson, n. 716. Cuba, 



Wright, n. 1064. Mexico, Bourgeau. Vera Cruz, Salvin. A fine species, quite free 

 from scales, except in the stoutest portion of the stipes I possess, where there are 

 traces of long subulate glossy dark-brown ones, free from hairs ; fronds glaucous beneath, 

 and with very peculiar involucres. 



7. C. Tussacii, Desv. ; st. and rachis pale or dark -brown, sparsely tuberculato- 

 asperous, beneath and on the costae and costules more or less copiously clothed 

 with ferruginous down and scurfy with small, laciniated, often bullate scales ; 

 fr. subcoriaceous, bipinnate; pinnl. lanceolate, acuminate, serrate, deeply pin- 

 natifid ; lobes oblong or linear-subfalcate, generally nearly entire ; sori near the 

 costa ; invol. globose, membranaceous, fragile, breaking down very irregularly. 

 C. Imrayana, Hk. Sp. I. p. 18. t. 9. B. (excl. var. /3.). 



Hab. West Indian Islands. Caracas. The generally copious scurfy scales on the 

 underside of the frond are mainly characteristic of our C. Imrayana. It appears to be a 

 high mountain species, gathered on the Blue Mountain Peak in Jamaica; alt. 5,000 ft. 



8. C. balanocarpa, Eat.; "st. sparsely aculeated at the base and paleaceous 

 with brown, narrow scales ; fr. glabrous, ample, bipinnate \" .pinnae 12-15 in. L, 

 2 in. br., oblong, acuminate ; pinnl. very numerous, 2-2-| in. 1., 2| lines w., linear- 

 oblong, obtuse crenato-lobate in their lower half, with a distinct, rounded auricle 

 at the inferior base, the superior half of the pinnl., or less, entire ; sori, one cor- 

 responding to each lobe of the pinnl. ; invol. mamillBeform, subcoriaceous with a 

 circular opening at the apex from which the capsules soon protrude. Eat. Fil. 

 Wright, et Fend. p. 215. 



Hab. Cuba, C. Wright, n. 1063. A most distinct and well-marked species, admirably 

 distinguished by Mr. Eaton, 1. c. 



9. C. cuspidata, Kze. ; "fr. bipinnate ; pinnl. alternate, subsessile, divergent, 

 oblong, cuspidate, 4|-6 in. 1. by 1 J in. w., unequal at the base, deeply pinnatifid," 

 having beneath a few deciduous whitish scales ; lobes linear-falcate, the lower 

 fertile portion a little contracted, crenulate at the apex, and acute ; sort costal ; 

 invol. cinnamon-brown, firm, bursting very irregularly. " stipes hairy at the 

 base."-lft.^. I. p. 19. t. 12. A. 



Hab. Peru, Poeppig.My fragments received from Dr. Kunze in many respecta 

 resemble some of the forms of C. arborea ; but the involucres are very different 



C 



