516 JUNGEKMANNIACEAE. 



1. Lopholejeunea Sagraeana (Mont.) Schiffn. in E. & P. Nat. Pflf. 1 s : 129. 



1894. 



Phragmicoma Sagraeana Mont, in Sagra Hist. Cub. 9: 464. 1845. 



Brownish or blackish green, more or less glossy, growing in depressed 

 mats. Leaves imbricated, the dorsal lobe widely spreading, oblong-ovate, about 

 0.75 m. long,, rounded; apical tooth of lobule often indistinct; leaf -cells appar- 

 ently uniformly thickened except for minute pits, averaging about 20 ft; under- 

 leaves subimbricated, reniform; inflorescence normally autoecious; perichaetial 

 bracts larger than the leaves, the dorsal one suborbicular, coarsely toothed, the 

 lobule in the -form of a minute basal tooth; bracteole entire or nearly so; peri- 

 anth oval to obovate in outline, the beak short and the wings deeply and closely 

 laciniate. 



On bark, Andros and New Providence : Florida ; widely distributed in tropical 

 America ; also reported from Africa and the East Indies. SAGRA'S LOPHOLEJEUNEA. 



15. CAUDALEJEUNEA [Steph.] Schiffn. in E. & P. Nat. 

 Pflf. I 3 : 129. 1894. 



Plants prostrate or ascending, medium-sized to large, green, not glossy. 

 Leaves more or less imbricated, complicate-bilobed, the dorsal lobe not squar- 

 rose, oblong-ovate, rounded to acute, usually entire; lobule inflated, the margin 

 involute, mostly bidentate, the apical or outer tooth with the hyaline papilla 

 near its proximal base; leaf-cells thin-walled but with distinct trigones. Under- 

 leaves orbicular, more or less retuse, entire. Antheridia in pairs in the axils 

 of saccate bracts, the androecia more or less elongated, terminal; bracteoles 

 everywhere present. Female inflorescence borne on a more or less elongated 

 branch without subfloral innovations; bracts unequally bilobed, the lobe entire 

 or toothed, the lobule narrow and scarcely projecting, entire; bracteole 

 shortly bifid, entire or toothed. Perianth obovate, compressed and with a single 

 sharp ventral keel, the lateral keels sometimes with entire or dentate wings. 

 [Latin, tailed Lejeunea.] About 15 species, mostly tropical. Type species: 

 C. Lehmanniana (Gottsche) Evans. 



1. Caudalejeunea Lehmanniana (Gottsche) Evans, Bull. Torr. Club 34: 544. 

 1907. 



Lejeunea Lehmanniana Gottseh, in G. L. & N. Syn. Hep. 325. 1845. 



Very variable, bright or pale green, scattered or growing in loose tufts. 

 Dorsal lobe of leaves about 1 mm. long, the apex usually rounded and entire 

 but sometimes acute and irregularly angular-dentate; apical tooth of lobule 

 acute and outwardly curved, often three or four cells long; leaf -cells averaging 

 about 28 X 21 /A; perichaetial bracts about as large as the leaves, the lobe 

 ovate-lanceolate, more or less sharp-pointed even when entire. 



On twigs, Maidenhead Coppice, New Providence : Florida ; widely distributed 

 in the American tropics. LEHMANN'S CAUDALEJEUNEA. 



16. MASTIGOLEJEUNEA [Spruce] Schiffn. in E. & P. Nat. 

 Pflf. I 3 : 129. 1894. 



Plants medium-sized, with prostrate or ascending secondary stems arising 

 from a prostrate caudex; branches as in Eadula, sometimes microphyllous or 

 flagelliform, often abundantly produced by the secondary stems; color green 



