436 66. MOHRIA. 67. TROCHOPTERIS. 68. LYGODIUM, EULYGODIUM. 



20. A. (Copt.) millefolia, Gard. ; st. of barren frond 1-1 in. 1., dense, erect, 

 pilose ; barren fr. 2-3 in. 1., f-1 in. br., oblong, tripinnate ; pinnae close, oblong, 

 the seflm. slightly flattened, under 1 lin. 1. ; texture subcoriaceous ; rachises pilose ; 

 panicle 2-8 in. L, with copious erecto-patent branches, the stem 3-4 in. 1. 

 Sturm in Mart. Fl. Bras.fasc. 23. fig. 16. t. 4. Copt. Gardn. Hk. Ic. t. 478. 



Hab. South Brazil. Barren frond iu shape and cutting resembling a leaf of A chillea 

 illefolium. 



GEN. 66. MOHRIA, Sw. 



Caps, sessile, placed on the back of the leafy frond near the edge. A 'single 

 species, combining the capsules of the sub-order with the habit of Cheilanthes. 

 TAB. VIII. fig. 66. 



1. M. cafrorum, Desv. ; st. tufted, 3-4 in. 1., slightly scaly ; fr. 6-18 in. L, 

 2-4 in. br., tripinnatifid ; pinnae close, lanceolate-oblong, cut down to a narrowly- 

 winged rachis into oblong pinnl., which are pinnatifid and deeply toothed in 

 the barren frond, less divided in the fertile one ; texture herbaceous or subcori- 

 aceous ; rachises and under surface more or less clothed with linear subulate 

 pale-brown scales. Polyp. Linn. M. thurifragra, Sw. 



Hab. Cape Colony to Natal, Mauritius, Bourbon, and Madagascar. Fragrant when 

 bruised. M. achillecefolia of the gardens (Lowe, N. F. t. 42. B.) is a finely-cut variety, 

 almost quadripinnatifid, and is said to have a different scent, and grow in more open 

 places. 



GEN. 67. TROCHOPTERIS, Gardn. 



Caps, small, sessile, placed irregularly round the edge on the under side of 

 the slightly-contracted lower lobes of the leafy frond. A single species, like a 

 dwarf Anemia, but with the fertile and barren parts of the frond not distinct. 

 TAB. VIII. fig. 67. 



1. T. etegans, Gard. ; st. densely tufted, very short ; fr. 1 in. 1., -$ in. br. 

 lyrato-pinnatifid, the upper lobes rounded, not deep, the lowest pair reaching 

 down nearly to the rachis, and bearing the sort on its laciniated edge ; texture 

 herbaceous ; venation flabellate, free ; both sides villose. Gardn. in Hk. Journ. 1. 

 p. 74. t. 74. Anemia, St. in Mart. Fl. Bras. t. 16. 



Hab. South Brazil. The fronds resemble the leaves of a Geum, and form a dense 

 rosulate tuft. According to Fe, it has been gathered in Cuba by Linden. 



GEN. 68. LYGODIUM, Sw. See page 25. 



Caps, solitary (or casually in pairs), in the axils of large imbricated clasping 

 involucres, which form spikes either in separate pinnae or in lax rows along 

 the edge of the leafy ones. A small widely -diffused genus, well characterized by 

 its wide-scandent twining stems. TAB. IX. f, 68. 



^L/ Eulygodium. Veins free. Sp. 1-13. 



* Fully-developed barren pinnules palmate or dichotomously forked. 

 Sp. 1-6. 



1. L. palmatum, S\v. ; primary petiole slender, |-J in. 1., each fork in the 

 lower part of the stem bearing a single cordato-palmate pinnl. 1^-2 in. br., not 

 so deep, bluntly. 4-6-lobed more than halfway down, the slender petiole -f in. 1.; 

 fertile pinnl. subdeltoid, 3-4-pinnatifid, formed only of winged rachises and short 

 spike-like fertile ultimate divisions, the latter linear, 1-1| lin. 1. ; surfaces naked ; 

 texture thin-herbaceous. Hk. Fil. Ex. t. 24. Schk. 1. 140. A. Gray, Man. t. 13. 

 Gisopteris, Bernh. 



Hab. Massachusetts to Florida. 



