438 68. LYGODIUM, EULYGODIUM. 



faces naked or nearly so ; spikes 1-3 lin. 1., in close rows along the edge of the 

 segments. Beddome, t. 61. 



Hab. South China and Himalayas to Queensland, Malay Isles, and Ceylon ; Guinea 

 Coast. L. microphyUum, Br., is a common form with short broad segments. We do 

 not venture to separate the Mexican L. mexicanum, Presl, which is quite like this in 

 habit, but is said to be not articulated at the apex of the petiole, a character which our 

 specimens leave in doubt. 



8. L. vennstzim, Sw. ; primary petiole very short, secondary J- in. 1. ; pinnl. 

 6-12 in. 1., 4-6 in. br., with a terminal segm. and 4-12 on each side, which are 

 simple, ligulate-oblong, the lower ones usually hastate, or pinnate below, all 

 articulated at the base, bluntly lobed at the edge when barren, the upper ones 

 sessile, the lower ones on a spreading petiole -J in. 1. ; texture firm ; rachis and 

 surfaces densely villose ; spikes 1-4 lin. 1., in close rows. L. polymorphum, 

 H'.B.K. Ugena, Cav. H. hirsutum, Willd. 



Hab. West Indies and Mexico to Brazil and Pern. Near the preceding, but larger 

 and constantly villose, with the edge of the barren segments crenato-pinnatind. L. cubeti-se, 

 H. B. K., probably belongs here. 



9. L. volubile, Sw. ; primary petiole nearly or quite obsolete, secondary about 

 1 in. 1. ; pinnl. 8-12 in. L, 6-10 in. br., with a simple ligulate-oblong terminal 

 segm. 3-6 in. L, 1-1 1 in br., and 3-5 like it on each side, truncate or subcuneate, 

 and articulated at the base,and all distinctly stalked ; texture subcoriaceous ; rachis 

 and surfaces naked or slightly pubescent ; spikes 1-3 lin. L, in close rows along 

 the edge of the leafy segments. L. scandens, Schk. t. 138. (non Sw.). L. hasta- 

 tum, Mart. t. 57. 



Hab. Cuba to Brazil. From this we cannot separate by any clear character L. has- 

 tatum and expansum, Desv., hirtum and lucens, Kaulf., Pceppiganwn, Presl. Wrightii, 

 Eaton, surinamense, Miquel, acuminatum, pubendum, and micans, Sturm. Segments of 

 several of these are figured by Sturm (Mart. Fl. Bras. fasc. 23. t. 13-14). In some of 

 the forms they have a pair of pinnte at the base, and in others they are slightly villose. 



10. L. pinnatifidum, Sw. ; primary petiole none or very short, secondary often 

 1 in. 1. ; pinnl. 8-12 in. L, 6-12 in. br., with a ligulate-oblong terminal segm. 3-6 

 in. 1., ^-| in. br., and 3-4 like it on each side, usually rounded or cordate, all 

 articulated at the base, the lower ones, or all, short-stalked, and sometimes hastate 

 or pinnate below ; texture subcoriaceous ; rachis and surfaces naked or slightly 

 pubescent ; spikes 1-3 lin. L, in close rows along the edge of the leafy segments. 

 L. flexuosum, Bedd. t. 63, but scarcely of Hwartz. 



Hab. Himalayas to Ceylon, Philippines, Malaccas, North Australia, Angola, Guinea. 

 Here belong //. longifolium and pubcsceiis, Wall., the latter a slightly pubescent form, 

 and L. salicifolium, Pies! (a form with small neat long-stalked segments), and Smith's 

 Congo plant, called L. Smilhianum by Presl. 



11. L. polystachyum, Wall. ; primary petiole short or obsolete, secondary \-\ 

 in. 1. ; pinnl. 8-12 in. 1., 4-6 in. br. ; the segm. uniform, 9-12 on each side, 2-3 

 in. 1., I in. br., articulated at the base, pinnatifid more than halfway down to 

 the rachis into close entire blunt lobes ^ in. br. ; upper segm. sessile, lower ones 

 shoi-t-stalked ; texture subcoriaceous; rachis and surfaces pubescent ; the fruit 

 in the fertile ones occupying the back of the scarcely modified lobes. Hk. 2nd 

 Cent. t. 76. 



Hab. Malay Peninsula ; gathered by Wallich, Griffith, Parish, &c.- Well distin- 

 guished by its numerous uniform deeply and regularly pinnatifid segments. 



12. L. subalatum, Bojer; primary petiole obsolete or very short, secondary 

 in. 1. ; pinnl. 6-9 in. 1., 4-6 in. br., subdeltoid, bipinnate, the apex pinnatifid ; 



