( 6 ) 

 LEUCOBRYUM HMPE. 



4 



6. LEUCOBRYUM MARTIANUM HMPE. Linn. XIII. p. 42. MULL. 

 Linn. XVIII. p. 689. Syn. Muse. I. p. 76; Dicranum Mar- 

 tianum HNSCH. fl. bras. p. 11. 



Habitat: in Surinamo, frequens, plerumque vero sterile; in truncis 

 vetustis, semiputridis sylvarum, inter flumen Surinam et rivu- 

 lam Para, late et compacte caespitosum ; in sylvis prope 

 Joden- Savanna, KEGEL n. 743 ; sine loco speciali, herb. 

 MIQUEL, herb. D. et MB.; specimina fructifera legit WEIGELT. 



ARTHROCORMUS D. et MB. 



7. ARTHROCORMUS PULVINATUS D. et MB. Planta perennis, 



pulvinato-caespitosa , albido-glaucescens, fragilis, epidendra, uberrime 

 fructigera, e Leucophanearum ordine, Octoblepharum siinulans. Caules 

 adscendentes, tenues, fusci, dense foliosi, inferne foliis vetustis ut plu- 

 rimum destructis omnino obtecti, valde radiculosi, cum vicinis caulibus 

 in caespitem densum et compactum congesti, simplices vel innovando 

 raniosi, articulato-flexuosi, raniis iterum innovantibus fastigiati. 



Folia subtrifariam dense imbricata, subsecunda, e basi erecta brevi 

 oblonga amplexicauli vaginante inaequilatera tenerrima hyalina subito 

 contracta, erecto-patula, linearia, elongata, leniter flexuoso-curvata, 

 apice obtuso mucronulata ibidemque saepius radiculoso-prolifera, crassius- 

 cula, opaca, antice planiuscula, dorso convexa, integerrima, fragilissima, 

 costa destituta, nitoris fere expertia: areolatione in toto limbo et media 

 baseos vaginantis parte compacta, neque uti in baseos alis ex unico 

 strato conflata, e cellulis subquadrato-hexagonis parvis ; areolatione 

 tnarginali e cellulis uniserialibus, pellucidis, linearibus ; areolatione ad 

 utramque baseos alam cellulis minutissimis denseque confertis late lim- 

 batam laxiori, e cellulis majoribus quadratis limpidissimis. 



