38 ASPIDIUM, § CYRTOMIUM. 



high coriaceo-membranaceous pinnated pinnatifid at the 

 apex, pinnsB numerous shortly petiolate 3-6-8 inches and 

 more long lanceolate acuminate entire or crenate or lobate at 

 the margin the apices strongly serrated varying in breadth 

 from h an inch to an inch the lower half sometimes in the 

 middle suddenly of one and the same pinna deeply pinnatifid 

 even to the rachis with oblong or linear segments, venation 

 exceedingly variable, primary veins sometimes pinnated the 

 branches often free throughovit or the lowest opposite pair 

 only is combined or nearly all meet and join so as to form 

 an irregular network between the costa and the margin, 

 all the veins more or less fertile, sori irregularly biseriate 

 between the primary veins. (Tab. CCXXXIV.) — Schrad. 

 Gbtt. Gel. Anz. 1824, ;;. 809. Kume, Flora, 1839, p. 332, 

 note. Metten. Aspid. p. 33. Nephrodium, Fee, Gen. Fil. p. 

 306. Polystichum, Pr. Epimel. Bot. p. 58. J. Sm. in Hook. 

 Lond. Journ. Bot. i. p. 199. Cyclodium, Pr. Epimel. Bot. p. 

 200. Aspid. (Polyst.) Guianense, Kl. in Linmea, xx. p. 364 

 (" differt ah A. abbreviato, Schrad., veyiis ramosis, ramis om- 

 nibus liberis^') . 



Hab. Tropical Eastern America: British Guiana, Parker, A2Jpim, n. 177 (one 

 specimen with the lower portion of some of the pinnae pinnatifid to the racliis), 

 R. Sckomburgk, n. 1157; Brazil, Bahia, Wetherell ; Ilhios, Moricand, n. 2208; 

 Rio, Covcovado, Gardner, n. 5671. Pernambuco, ?i. 1218; New Granada, Rio 

 Hacha, elev. 9000 feet, Schlim, n. 856 ; Jamaica, Wilson. — The varied venation 

 of this plant will afford charrcters for almost as many different species, if not 

 genera, as there are specimens. 



47. A. (Cyrtomium) juglandi folium, Kze. ; caudex stout 

 erect very scaly with large brown ovate or lanceolate scales 

 darker in the centre, stipites 1-2 feet long stramineous 

 equally scaly with the caudex while young, scales patent or 

 reflexed, fronds 1-2 feet and more long firm-coriaceous ovate 

 or oblong pinnated, pinnse 2-10 pairs distant petiolate often 

 scaly at the setting-on of the petiole, terminal one long-pe- 

 tioled, ovato-lanceolate or lanceolate or oblong subfalcate 

 more or less serrated acuminated 4-6 inches and more long 

 1-2 inches broad the base obtuse son)etimes unequally short- 

 cuneate, primary veins copious horizontally patent slender 

 pinnated, the branches or veinlets sometimes ail free but ge- 

 nerally more or less united so as to form elongated areoles 

 which generally include a free or united veinlet, sori dorsal 

 forming several series on each side the costa less regular and 

 more scattered as they approach the margin. — Kze. inLinncea, 



