414 A.W. Evcms — Haioaiian Hepaticae of the Tribe Jubuloidem. 



Avhich, accordingly, the oldest of these four specific names should be 

 applied. 



1. Lopholejeunea subnuda (Mitt.) Steph. 



Phragmicoma subnuda Mitt.; Seemann, Flora Vitiensis, 412. 1871. 

 Lejeunea gibbosa Angstr. Ofversigt af Kongl. Vetensk. Akad. 



Forhand. xxix, Haft 4, 23. 1872. 

 Lejeunea [Phragmicoma) Mannii Aust. Bull. Torr. Bot. Club, v, 15. 



1874. 

 Lopholejeunea Oicahueiisis Steph. Hedwigia, xxxv, 11. 1896. 

 Lopholejeunea gibbosa Steph. Bull, de I'Herb. Boissier, v, 842. 1897. 

 Lopholejeunea Mannii Steph. 1. c. 

 Lopholejeunea subnuda Steph. 1. c. 



Plate XLVIII., figs. 1-6. 



Autoicous: plants closely appressed to substratum, but usually 

 growing in wide, depressed mats, dark olive-green or purplish, some- 

 times almost black: stems irregularly pinnately branched: leaves 

 imbricated, the lobe convex, more or less decurved at the rounded or 

 very obtuse apex, broadly ovate, arching over the stem but scarcely 

 beyond, not cordate at base, entire; lobule broadly triangular-ovate 

 from a broad base (when explanate), keel slightly arched, not decur- 

 rent, free margin entire, strongly involute near base, plane and very 

 bluntly pointed at the apex, then gradually passing into lobe : under- 

 leaves contiguous or slightly imbricated, reniform, entire, attached 

 by a curved line of insertion, but scarcely decurrent: leaf-cells papil- 

 lose with indistinct and often confluent trigones and intermediate 

 thickenings: ? inflorescence borne on a long principal branch, some- 

 times giving off branches near the bracts, but very rarely true inno- 

 vations; bracts scarcely bifid, the lobule appearing as a narrow 

 entire, rectangular expansion attached to lobe by its whole length, 

 lobe ovate, more or less dentate at the rounded apex and along 

 antical margin, the teeth short, sharp or blunt, and rarely more than 

 six in number; bracteole free, ovate to obovate-quadrate, attached 

 by a narrow base, truncate or slightly emarginate at apex, entire; 

 perianth about half exserted, obovate or cuneiform, gradually nar- 

 rowed toward base, rounded or truncate at apex and abruptly 

 narrowed into a short beak, somewhat compressed on sides, with 

 two distinct postical keels and often with a low antical keel, keels 

 more or less winged, the wings undulate, dentate or laciniate: 

 3 spike borne on a simple branch near the involucre, occupying the 



