RnAPHIDOSTEGTUM C(ESPITOSUM 87 



sliow narrow and acuminate loaves, they pass insensibly into the form 

 represented by No. 2135, and I even detected on Hampe's type a 

 ])ei-icluetiuni wliich was just half-way between the filiform pointed 

 b)-acts ])re vailing there and the exactly cws2)itosu>?i-l[ke bracts of 

 JSfo. 2135. It. (((//latum must, therefore, be brought under H. coespi- 

 fosicm, and with it one or two other species wliich Mrs. liritton has 

 identified with H. a(jnaium. 



R. cuculhdifol'uim (Hampej, type, coll. Lindig. Might well be 

 the type of 11. coisintoaum, a[)ai't from the entire leaves, and might 

 well have been collected on Table Mt. ! 



It. snhsphcericarpum (Hampe & C. M.), type, coll. Glaziou. Has 

 leaves rather narrowly acuminate and cells somewhat pellucid, but in 

 all other respects agrees, and M. pulvinale (Hampe), also coll. 

 Glaziou, forms an admirable connecting link. 



B. Catillum (C. M.), coll. Schweinfurth, ex Herb. C. M. in Herb. 

 Besch., shows a fine varietj" of leaf apex, within the limits of a single 

 branch ; many being rounded and quite obtuse, but others apiculate, 

 or acute ; on some branches the leaves are complanate, on others 

 homomallous. 



B.fluminale (C. M.), Cameroons, coll. Dusen, No. ijQ6. Might 

 well be the type of R. loxense ! 



R. perlaxum (C. M.), Cameroons, Coll. Dusen. Is simply a 

 large lax form, such as occurs abundantly in S. American collections 

 as R. litliopliiltim, &c. 



R. inconspicuum (Hornsch.), Brasilia, Rio Grande, ex Herb. 

 Martii, Herb. Hamp., is simply R. C(£spitosum. The fruit is charac- 

 teristic. C. Mueller's description in the Synopsis scarcely implies any 

 difference from R. loxense. 



Sematopliyll'um sithnervatum Mitt. I have given this as a sy- 

 nonym without examination of s.pecimens on the following grounds : — 

 In the first place, Mitten had evidently been in two minds about 

 raising it to the rank of a separate species, as he actually cites the 

 type and only specimen on which it is based, under 8. c(]espitosum, 

 only four pages earlier ; and in the second place, because the only 

 difference he suggests as separating it from R. coespitosicm is that 

 the leaves are " superne angustiora." 



So far, then, as I have been able to examine authentic specimens 

 of the plants of this group, I propose the following synonymy : — 



RiiAPHiDOSTEaiUM C(ESPiTOsuM (Sw.) Jaeg. Adumbr. ii. 454 



(1875-6). 

 Hypniim ccespito%um Sw. Prodr. 142 (1788). 

 Leskea coespitosa Sw. Fl. Ind. Occ. iii. 1807 (1806). 

 H. densifollum Spreng. et H. pallidisetum Brid. Bryol. Univ. 



ii. 5^1, fide C. M. 

 H. lithopliiliim Hornsch. in Mart. Fl. Brasil. i. 84 ! 

 I£. loxense Hook, in Kunth. Syn. PL iEquinoct. i. 62 ! 

 Neckera str((ininea Hornsch. op. cit. p, 54 =.Leshea circinalis 



Hampe,/f/e C. M. Syn. ii. 326. 

 Hypnum inconspicuum Hornsch. op. cit. i. 86 ! 

 H. suhsecundum Arnott, Disp. d. M. Q2.,fide C. M. 



