ACROSTICHUM, § POLYBOTRYA. 245 



piiintc and pinnules confluent at tlic apex, pinnaj lanceolate, 

 acuminate, pinnules rhombeo-ovate subfalcate shortly acumi- 

 nate at the base al)ove truncato-sul)auriculate below cuneate 

 veined serrated; fertile frond sulxiuadripinnate tripinnatifid 

 or bipinnate at the apex, pinna acuminate, tertiary ones fili- 

 form obtuse, rachises subpaleaceous hairy." Kze. — Polybo- 

 trya, Kze. in Linncea, ix. p. 24. Fee, Acrost. j). 72. Psomio- 

 carpa, Pr. Epiinel. 



I lab. " Pampayaco, Peru," Pcep/iig. — " Differs from P. caudata in the fertile 

 frond being more comiiound, the sterile ones more simple; from P. osmundacea 

 (ex descrij). et Ic.) in tiie rachises being pilose, and in the fertile pinnules being 

 elongated." I fear there is too great a desire to multiply needlessly the species 

 of the Polybotrya group of Acrostichum. 



100. A. (V oXyhoiry si) acuminatum, YiooV.', "caudex erect 

 scandent densely paleaceous, stipes sparsely paleaceous, 

 fronds coriaceous glabrous ; sterile ones 1-2 feet long oblong- 

 ovate acuminate bipinnate, inferior secondary pinnae petio- 

 late, suj)erior ones sessile and decurrent from a cuneate en- 

 tire unequal base or on the lower side cuneate with the su- 

 perior side truncate and produced ovate subfalcate acuminate 

 piiinatifidly incised or grossly crenate ; fertile fronds 1 foot 

 long deltoid-ovate tripinnate, tertiary segments petiolatc 

 oblong entire or lobulate at the base." Metten. — Polybotrya 

 acuminata, Link. Sp. Fit. p. 148. Fee, Acrost. p. 73. Metten. 

 Fit. Hort. Lips. p. 23. /. 2. f. 1-6, Psomiocarpa, Pr. Epim. 

 p. 161. Aspidium, Raddi, Fil. Bras. p. 34. t. 39 {sterile 

 frond only). 



Hab. Brazil, Raddi (in Herb, nostr., but sterile), Langsdorff. — It has long been 

 a puzzle what the Aspidium scandens, figured and descril)ed by Raddi from sterile 

 specimens, could be. My authentic ones from Raddi quite agree with the figure 

 and description of Alettenius of the i)resent plant, and the two are alike natives 

 of Brazil. Moore had, indeed, been disposed to refer IJaddi's plant to Polybotrya 

 osmundacea; but as far as the frond and caudex and stipes are concerned, 

 they much more resemble Link's and Mettenius's plant. 



101. A. (Polybotrya) incisum. Hook.; '' fronds pubescent 

 subtripinnate, pinnaj bipinnate oblong, pinnules bipinnate at 

 the base bipinnatifid above, segments incised, the segments 

 obtuse, rachis thick paleaceous ; fertile ones trii)innatc 

 branched, ultimate divisions linear obtuse acuminated at the 

 apex, capsules large ovoid clothing the under side of the la- 

 mincc." Fee. — Polybotrya, TAnk. Sp. Fil. p. 148. Fee, Acrost. 

 p. 73. /. 35. Metten. Fil. Hort. Lips. p. 23. 



Uab, Brazil (laK/zVc).—" Ill tliis plant there is a great disposition to liavc 

 parts of a frond sterile, the rest fertile." 



