MOUNT KOKAIMA IN BEITISH GUIANA. 8$ 



DlCKANODONTIUM lM'l^CIl KO-A l-A KIO, Brotb., 11. sp. Dioicu in , ea'Spitosilll), cmspitibus 

 dcnsiusculis lutescentibus nitidis; caulis 8 cm., sterilis usque ad 12 cm. altus, 

 arcuato-flexuosus, fusco-tonicntosus, densiuscule i'oliosus, sajpe innovationibus 

 elongatis gracilibus. Folia falcata, canaliculato-concava, e basi lanceolata longe 

 subulata, usque ad 1 cm. longa, superne dense et argute serrulata, nervo basi folii 

 latitudinis tertiam partem vel paulum ultra occupante et superne dorso serrulato 

 ibidemque folium totum occupante ; ccllulso superiores angusta? ; basilares ad 

 uervum laxse, rectangulares, hyalinse ; exteriores angustissimae, limbum multi- 

 seriatum efformantes; alares in ventrem magnum fugacem disposhaa, la\;r, 

 tenerac, fuscae. Bractece perichcetii interna; e basi vagiuante sUbito in subulam 

 integram attenuatse, cellulis omnibus elongatis angustis tcneris. Seta 25 cm. 

 alta, tenuis, serpentino-nexuosula, lutea, apicc cygnea, rubra. Theca sicca erecta, 

 plicata, bumida ob setam apice cygneam borizontalis, tevis, oblonga, c. 2"5 mm. alta, 

 leptodermis, t'uscidula. Poistomium simplex ; exostomii dentes 10, aurantiaci, 

 c. 037 mm. longi et c. 0'075 mm. lati, usque ad basin in cruribus duobus nMifonni- 

 bus inaequalibus articulatis dense papillosis divisi ; spori 0*017 mm., f usci, papillosi. 

 Cat em ignota. 



Mount Roraima, Ledge, 7500-8000 ft,, McCunnell Sf Quelch, 345, 346. 



Endemic. 



Campylopus chionophilus, Mitt, in Journ. Linn. Soc, Bot. xii. (1869), p. 81. 

 Dicranwm chionophilum, C. Muell. Syn. i. 398. 

 Mount Roraima, Ledge, 7500-8000 ft., McCormell $f Quelch, 342. 

 Pound in tbe mountains of New Granada. 



Campylopus Roraim/E, Brotb., n. sp. Dioicus, caespitosus, caespitibus densis nigrescentibus 

 superne lutescentibus etiamque nitidiusculis ; caulis Bid 3 cm. usque altus, tomentosus, 

 dense et per totam longitudinem aequaliter foliosus, ramosus. Folia, bomomallula, 

 erecto-patenlia, canaliculato-concava, e basi oblongo-lanceolata, breviter subulata. 

 c. 5 mm. longa et c. 075 mm. lata, marginibus summo apice serratis, nervo basi 

 dimidiam partem folii latitudinis occupante, lamina usque ad apicem folii distincta ; 

 cellulae basilares subrectangulares, inter se poroses, marginem versus angustiores, 

 dein rbomboideie ; superiores rbonibeae, incrassatae ; alares numerosae, subquadratae, 

 rubra.', basin totam occupantes. Ccetera ignota. 



Mount Roraima, Ledge, 7500-8000 ft, McCormell Sf Quelch, 347. 



Endemic. 



Species C. concolori, Brid. affinis, sed foliis multo brevioribus primo visu digno- 

 scenda. 



Campylopus atratus, Brotb., n. sp. Dioicus, robustus, ater, apicc lutescens, uiti- 

 diusculus. Caulis 10 cm. altus, erectus, baud tomentosus, dense et per totam 

 longitudinem aequaliter foliosus, parce ramosus ; folia sicca suberecta, bumida 

 recurvulo-patentia, canaliculato-concava, superne tubulosa, e basi lanceolata longe 

 et anguste subulata, pilo stricto tenui byalino longiusculo serrato termiuata, 



SECOND SERIES. — BOTANY, VOL. VI. K 



