CVATHEA. 19 



Calcate obtuse serralcd hairy beneatli at the costa and the par- 

 tial racliis, sori bistM'ial mostly at the base of the sefrment, 

 receptacle globose" (" at length bipartite," Presl). Sjireiifj. 

 Si/st. l'c(/. p. l-2(). Kanlf. Knum. Fil. p. 255. Disphenia 

 aculeata^ Pred, Tent. Pterid. p. 55, t. 1,/. 13. 



Hal). Hispaniola. Portorico, (Spreng.) — It is impossible, without an in- 

 spection of Willdcnow's lierhaiiuni, to determine Spren<>;ers ])lant. Presl's 

 fifi;iire of the leallets is very like C. arborea : hut the receptacle and in- 

 volucre arc such as I have never seen (the former deeply bipartite, larj^er 

 than, and exserted much beyond, the firm and even ed;>e of the involucre) 

 and certainly do not correspond with Kaulfuss' remark, which would ap- 

 pear to be made on Willdenow's specimen. He says " it differs from C 

 (irborca in the rachis and pinnules being hairy beneath, that the receptacle 

 is globose, and the involucres very thin and caducous." 



1'2. C. ciispidafa, Kze. ; "frond bipinnate, pinnules alter- 

 nate subsessilo divergent oblong cuspidate unequal at the 

 base deeply pinnatifid beneath with minute white " (decidu- 

 ous) " scales, segments linear-falcate the lower fertile portion 

 contracted crenulale at the apex and acute, sori costal, par- 

 tial rachis furrowed above paleaceo-hirsute " (at length gla- 

 brous) "shining beneath, universal rachis rough above shining 

 beneath, stipes hairy at the base." (Tab. XII. A.) Kze. S>//i. 

 PL Cri/pL Pu'pp. p. 101. iMart. Ic. PL Crypt. Bmz. p. 78. 



Hab. INIarshy woods of Maynas, Peru, Pieppig. — The figure here given 

 is taken from one of Poeppig's own specimens. It is assuredly allied to C. 

 nrborcu, as Kunze remarks, but especially to some of the varieties with nar- 

 row elongated segments; yet the involucre seems different, very thin and 

 membranaceous, bursting irregularly and not forming a cup beneath the 

 sorus. JMartius compares it to C. excelsa, a Mauritius species with a very 

 different habit. 



1.3. C. diveryeun, Kze.; "frond bipinnate pendulous, ])in- 

 nse alternate petiolate very remote, pinnules alternate much 

 ])etiolated divergenti-divavicate lanceolate acuminate deeply 

 })innatirid, the segments oblong falcate acute serrated on the 

 reflexed margin, sori costal numerous contiguous, rachis hairy 

 above scabrous beneath, stipes chaffy above aculeated be- 

 neath." (Tab. XI. A.) Kze. Syn. PL Cn/pt. P<vpp. p. 100. 

 Mart. Ic. PL Crypt. Braz. p. 78. 



Hab. Mountains of Pampayaco, Peru, Pwpp'uj. — Kunze makes no re- 

 marks on the affinities of this species. Martins alludes to its resemblance 

 to C. arborea ; but to me it appears to be very distinct in the size and form 

 of the segments and in the very petiolated pinnules, as may be seen by our 

 figure taken from an original specimen. 



14. C. eqitesfris, Kze.; "fronds bipinnate, ]iinnules remote 

 alternate ])etiolate the lower ones divaricated lanceolate acu- 

 minate equal at the base pinnaliiid, the segments oblongo- 

 lalcate obtuse serralcd at the apex, the lower ones fertile, sori 



c 2 



