442 70. MARATTIA, EUPODIUM. 71. DAN.EA. 



marginal, -f lin. 1., the sides ultimately spreading, the attachment oblong. 

 Stibasia, Presl. De Vriese, tab. 3. /. 24. 



Hab. Sandwich Isles. 



6. M. (Gymno.) alata, Smith ; st. 1-2 ft. 1., 1 in. or more thick, deciduously 

 scaly ; Jr. 3-4 ft. 1., tripinnatifid, the lower pinnae the largest, all except the 

 lowest pair usually simply pinnate, the ultimate divisions ^-f in. 1., about J in. 

 br., oblong, blunt or acute, the base cuneate, the edge serrate or crenate, the 

 rachises with a very distinct wing ; texture herbaceous ; under surface more or 

 less chaffy ; synangia copious, submarginal, ^-f lin. 1., the sides erect, the attach- 

 ment oblong or roundish. Smith, Ic. inedit. t. 46. (non Raddi). Discostegia, 

 Presl. M. Isevis, Smith, Ic. t. 47. M. weinmannnefolia, Liebm. 



Hab. West Indies, Mexico, and Guatemala. Presl and others assign to this an 

 involucre, which we are not able to detect. M. Icevis, Sm., is a form with the rachis 

 smooth and teeth of the segments blunt. 



Eupodium, J. Sm. Synangia short-stalked without an involucre. 



Sp. 7. 



7. M. (Euppd.) Kau'fussii, J. Sm. ; st. 2-3 ft. 1., thick, naked ; Jr. 3-4 ft. ]., 

 quadripinnatifid, the lowest pinnce much the largest, all except the lowest pair 

 bipinnatifid, 1 ft. or more 1., 6-8 in. br. ; pinnl. 3-4 in. 1., the rachis very 

 distinctly winged ; segm. oblong, deeply and bluntly toothed, those of the lowest 

 pinnae again pinnatifid ; texture herbaceous ; surfaces naked ; synangia -|-| lin. 1., 

 not marginal, deeply cleft, the sides ultimately spreading. Hk. 2nd Cent. t. 95. 

 M. alata, Raddi, t. 83-4. (non Sm.) 



Hab. West Indies and Columbia to Ecuador and Rio Janeiro. 



GEN. 71. DAN^A, Sm. 



Caps, sessile, concrete in rows, which cover the whole under surface of the 

 pinnae on which they are placed, opening by pores at the apex. A well-marked 

 genus restricted to Tropical America. TAB. IX. fig. 71. 



1. D. simplicifolia, Rudge ; st. of the barren fr. 2-12 in. ]., with 0-2 nodes, 

 slightly scaly below ; barren fr. 6-12 in. 1., 2-4 in. br., ovate-oblong, the apex 

 acuminate, the edge entire, the base rounded or cuneate ; texture subcoriaceous ; 

 midrib beneath naked ; veins close, usually once forked ; fertile fr. similar but 

 smaller, and the st. longer. Rudge, t. 36. Kunze, t. 50. 



Hab. Guiana and North Brazil. One of our specimens is partially fertile only. There 

 are about 100 capsules in the central synangia, and 30,000 to an entire frond. 



2. D. trifoliata, Reich.; st. of barren fr. about 1 in. 1., with 1 node, slightly 

 scaly below ; barren fr. with an oblong-lanceolate entire terminal pinna 8-12 

 in. 1., 3 in. br., and one or two pairs of similar but smaller lateral ones ; texture 

 coriaceous ; surfaces glossy, the rachis naked, not winged, swollen at the nodes ; 

 veins close, usually once forked, casually anastomosing ; fertile fr. on a longer st., 

 the pinnse smaller. Kze. Anal. 4. t. 2. 



Hab. Guiana ; gathered by Hostmann and Schomburgk. Perhaps not really distinct 

 from the preceding. 



3. D. trichomanoides, Spruce, MSS. ; st. of barren fr. under 1 in. 1., furfu- 

 raceous, continuous ; barren fr. 3-4 in. 1., 1 in. br., with about 12 pinnce on each 

 side, the central ones ^ in. 1., 2 lin. br., oblong, short-stalked, the base rounded ; 

 colour dark-green ; texture pellucido-herbaceous; veins simple; rachis with a 



