I1EMITELIA. 455 



Hab. Guatemala to Peru. Remarkable for a distinct narrow wing connecting many 

 of the upper pinnules. Seemann, 1120, from Veraguas, is glabrous except the ribs 

 above. 



15*. H. costaricensis, Mett. ;fr. ample, tripinnatifid ; basal scales broad, brown, 

 with pale edges ; rachises reddish-stramineous, remotely muricated ; pinnae lan- 

 ceolate ; pinnl. sessile, ligulate, cut down to a narrow wing ; segm. oblong, sub- 

 falcate, acute, serrulate ; texture subcoriaceous ; under surface sparsely bristly on 

 the ribs ; veins close, forked low down ; sori subcostular, 5-7 on a side ; inv. dimi- 

 diate, distinct. Kuhn, Linncea, 36. p. 159. 



Hab. Costa Eica and Panama. 



15*. H. andina, Karst. ;/r. ample, tripinnatifid ; rachises brown-stramineous, 

 naked, not muricated ; pinnce oblong-lanceolate, lj-l-| ft. 1. ; pinnl. ligulate, 

 3-3^ in. 1., - in. br., cut down to a broad wing, the lower stalked ; segm. flat, 

 close, 2 lin. br., falcate denticulate; texture subcoriaceous; both sides green, 

 naked ; veins 7-8-jugate, forked near the tip ; sori small, submarginal ; inv. dis- 

 tinct, dimidiate, glabrous. /Y. Columb. 2. p. 183. 1. 197. fig. 1. 



Hab. Andes of Columbia, Karsten, Lindig, 355. 



15*. H. setosa, Mett. ; fr. ample, tripinnate ; st. short, grey, muricated ; basal 

 scales dark-brown, linear-subulate ; rachises grey-stramineous, naked, smooth ; 

 pinnce oblong-lanceolate, 1-1 \ ft. 1., the lower diminished, the lowest dimorphous, 

 with pinnated subulate segments ; pinnl. ligulate, 3-4 in. 1., f-| in. br., cut down 

 to rachis below ; segm. in. br., bluntish, falcate, the barren close, the fertile nar- 

 rower, crenulate, with a space between ; texture moderately firm ; both sides green, 

 glabrous ; veins 8-10-jugate, forked ; sori costular ; inv. small, depressed, glabrous. 

 Alsophila setosa, Kaulf. Hook. Sp. 1. p. 46. Cyathea Beyrichiana, Presl. 

 Hook. Sp. 1. p. 21. Ic. t. 623. Syn. edit. 1. p. 19. 



Hab. Brazil. 



16*. H. decipiens, Scott ; />. ample, tripinnate ; rachises grey, muricated, 

 naked beneath ; pinnce oblong- lanceolate, 1^-2 ft. 1. ; pinnl. lanceolate, subsessile, 

 4-5 in. 1., f-1 in. br., cut down to the rachis or a narrow wing ; segm. not close, 

 1 lin. br., falcate, acute, denticulate, rarely crenato-pinnatifid ; texture subcori- 

 aceous ; upper surface dark-green, hairy on the ribs only, lower with copious 

 pale lanceolate scales on the ribs ; veins 10-12-jngate, deeply forked ; sori small, 

 costular ; inv. fragile, half-cupshaped, irregular, glabrous. Alsophila decipiens, 

 Scott. Bedd. Ferns. Brit. Ind. t. 311. 



Hab. Sikkim, Scott. Habit of Alsophila latebrosa. 



18*. H. tahitensis, Baker ; fr. ample, tripinnate ; rachises rufo-tomentose, 

 above scarcely muricated ; pinnce lanceolate, 1 ft. or more 1. ; pinnl. sessile, ligu- 

 late, 2-3 in. 1. ; segm. close, obtuse, obscurely crenulate, 1 lin. br. ; texture subco- 

 riaceous ; upper surface densely pilose on the ribs, lower with minute adpressed 

 rusty lacerated scales on the ribs ; veins 7-8-jugate, forked ; sori costular ; inv. 

 half-cupshaped, firm, glabrous, entire. Alsophila, Brack, t. 40. fig. 2. Syn. 

 edit. \.p. 40. H. Durvillei, Mett. Kuhn, Linn. 36. p. 1GO. 



Hab. Society Islands. 



18*. H. Moorei, Baker; /;*. ample, 4-pinnatifid ; rachises dull-brown, furfu- 

 raceous beneath, not muricated ; pinnce oblong, f-1 ft. 1. ; pinnl. sessile, imbri- 

 cated, lanceolate, 2|-3 in. 1., - in. br. ; segm. close, ligulate, g in. br., blunt, 

 cuneate at base, deeply pinnatirid, with small deltoid ascending subacute lobes ; 

 texture subcoriaceous ; upper surface dark -green, glabrous except the ribs, lower 

 paler, not at all pilose, clothed on the ribs with adpressed small broad white 



