POLYPODIUM, § PIIEGOPTEUIS. 241 



Ilab. Surinam, Iloslmann, n. 15. Pani, Spruce, n. 30.— I can find no descrip- 

 tion to accord satisfactorily with this species. The petiolated, auricleii, and oblique 

 base of the pinnte, excised, as it were, at their inferior margin, and their shallow 

 lobes, are its chief distinguishing marks. Spruce's and llostmann's si)ecimens 

 are identical, and both are perfectly glabrous, and also destitute of scales. 



168. P. (Phegopteris) niacrop/ij/llum, Hook.; caudex ?, 

 stipes very stout thick as one's little finger terete grooved on 

 one side dark-brown glossy 2 feet (and probably much more) 

 long paleaceous below with rather large brown ovato-acumi- 

 nate firm scales, upwards and on the stout rachis the scales 

 vary in shape are smaller delicate membranaceous spreading 

 and often fringed, frond ample firm-mcmbranaceous glabrous 

 dark-green pellucido-punctate 3 feet and more long and (judg- 

 ing from the length of the largest pinna) 32 inches wide in the 

 broadest part broad-ovate acuminate pinnated pinnatifid at the 

 extremity, lowest pinnaj long-petioled higher up sessile and 

 gradually more and more adnate and decurrent at length co- 

 adunate, several pairs measure 16-17 inches in length with 

 a breadth of 2|-3 inches from a broad and truncated rarely 

 contracted base oblong finely acuminated into a serrated 

 point deeply and regularly pinnatifid to within \ of an inch 

 of the costa, segments numerous approximate forming nar- 

 row sinuses, horizontal 1-H inch long oblong or scarcely 

 subfalcate very obtuse entire or obscurely serrated, veins 

 12-14 on each side the costule short and patent simple 

 and then the sorus is dorsal, or forked and the sorus is ter- 

 minal or lateral from the extreme shortness of the branch 

 that bears it, thus forming two very regular series one on each 

 side the costule nearer the latter than the margin, the largest 

 sori are always on the disk of the pinnes nearest the main 

 costa. 



Ilab. Tarapota, Eastern Peru, Spi-uce, n. 4720. — This is another of the pellu- 

 cido-punctate species of § Phegopteris, and 1 cannot but look upon it as a very 

 distinct species, although the characteristic marks are not easily defined in words. 

 The size of the principal primary pinniu is quite remarkable, and the great 

 length of the segments. 



169. P. (Phegopteris) caudatnm, Klfs. ; caudex stout 

 erect, stipites tufted H-2 feet long sparsely and deciduously 

 paleaceous with pale lanceolate scales 2-3 feet long 12-14 

 inches wide broad-ovate acuminate firm-membranaceous 

 opaque pellucido-punctate pinnated pinnatifid at the extre- 

 mity, pinnffi very patent 6-8-10 inches long 1-2 inches 

 broad nearly opposite distant, lowest ones petiolate, uj)per 



vob. IV. 2 I 



