98 REPORT OX TWO BOTANICAL COLLECTIONS FROM 



21. Mastigobrytjm dissodontum, Steph. n. nornen; Bazzcmia bidens var. dissodonta. 



Spruce, in Trans. Edinb. Bot. Soc. xv. (1885), p. 371. 

 Summit of Roraima, McConnell Sf Quelch, 532. 

 Found in Colombia. 



22. Mastigobrytjm portoricense, Hampe & Gottsche in Linnsea, xxv. (1852), p. 348. 

 Roraima at 3500 ft., McConnell Sf Quelch, 545. 



Common in tbe West Indian Islands and northern South America. 



23. Mastigobrytjm vincextinum, Lehm. & Lindenb. Syn. Hep. p. 226. 

 Roraima, Ledge, 7500-8000 ft., McConnell Sf Quelch, :J34/10, 15, & 16. 

 Common in the West Indian Islands. 



24. Mastigobrytjm Krugiaxum, Steph. in Hedwigia, xwii. (1888), p. 300. 

 Roraima, Ledge, 7000-8000 ft., McConnell 8f Quelch, 334/14 in part. 

 Found before in the island of Santo Domingo. 



25. Mastigobrytjm gracile, Hampe & Gottsche, in Linnaea, xxv. (1852), p. 346. 

 Roraima, Ledge, 7500-8000 ft., McConnell 8f Quelch, 334/11 in part. 

 Known from different places in the West Indian Islands. 



26. Micropterygium GRANDiSTiPULUM, Steph., n. sp. SteHlis, minor, dilute brunuea 

 vel flavo-rufescens, muscicola, valde intricatim c.-espitans. Caulis tenuis, ad 2 cm. 

 longus, irregulariter ramosus. Folia conferta. dccurvula, semiamplexicaulia, ex 

 angusta basi ovato-oblonga, longe acuminata, apice abrupte attenuata ibidemque 

 paucidenticulata vel integerrima. Folii lobulus posticus integerrimus, brevi spatio 

 (ad j-) carinatim coalitus, folium subinde oblique percurrens, attenuatus, longe sub 

 folii apice desinens. Cellules foliorum lseves, 8x12 p, basales 8x17 /*, sub- 

 rectangulatae, maxime aequaliterque incrassatse. AnvpMgastria magna, imbricata, 

 foliis parurn breviora, transvei'se inserta, plana, integerrima, medio infero fere 

 eircularia, superne abrupte angustata, lanceolata, acuta. 



Roraima, Ledge, 7500-8000 ft., McConnell 8f Quelch, 334/14 in part. 



There is not a species of this genus which does not have some of its leaves merely 

 conduplicate, the wing being entirely wanting; where the latter is developed it is part 

 of the antical lobe, which can easily be observed if a transverse cut of the leaf is made ; 

 the same occurs sometimes in Scapania, and is best developed in Schlstochila. 



27. Micropterygium pterygophylltjm, Spruce, in Trans. Edinb. Bot. Soc. xv. (1885), 



p. 384. Jungermannia pterygophylla, Nees, in Mart. Fl. Bras. vol. i. pars prior, 



Algse, Lichenes, Hepaticse, p. 377. 

 Summit of Roraima, McConnell 8f Quelch, 530 in part. 

 Common in Tropical America. 



28. Lepidozia commtjtata, Steph. in Hedwigia, xxvii. (1888), p. 293. 

 Summit of Roraima, McConnell Sf Quelch, 521. 



Very common in the West Indian Islands. 



