76 | STEGOCARPI. PLEUROCARPI. NECKERA. 
exarati, obscure articulati, apice introrsum involuti; ca- 
lyptra minuta albida tenera glabra. 
Pierogonium Boryanum Mont. in litt, — Pterogonium urceo- 
latum Schw. in Musc. Surinamens, Weigelt. 
Patria. Domingo: Hb. Boryan. Surinam: Wei- 
gelt; in trune. Tamarindi Indicae pr. Paramáribo, Ju- 
nio 1844, Kegel. E Cayenne comm. Schwügrichen. 
64. N. leucocytus C. Müll. ; monoica; laxe cespi- 
tosa, ramis fenuibus valde curvatis subhomomallophyllis 
sordide luteo viridibus, vagis; folia e basi «angustiore 
ovata obtusiuscula vel subacuminata, profunde concava, 
subplicata, margine ubique revoluto integerrimo, cellulis 
basis, reflectione marginis valde angustatae, pallide fla- 
vidis, alaribus inferioribus pallide flavidulis , Superiori- 
bus minutissime quadratis obscuris pluribus, nervis di- 
stinctioribus; perich. multo minora angustiora parum la- 
xius reticulata, ubique pallida, subdenticulata; theca in 
ped. perbrevi senectute arcuato erecta, dein nutanti -in- 
clinata minutissime ovalis; dentes angusti. 
Pterogonium microcarpum Hmp, in litt. 
Patria. Java. 
A N. Boryana caracteribus cursive impressis differt. 
Peristom. imperfectnm solum vidimus. 
65. N. lineolata C. Müll. ; monoica? longe prostrata, 
ramis elongatis parce breviter dichotomis sordide viridi- 
bus valde homomallophyllis, tenuibus ; folia late ovata lon- 
gius acuminata, inaequaliter. concava implana, haud pli- 
cata, margine ad latus alterum valde revoluto , alterum 
erecto, cellulis basi. laxioribus; perich. anguste lanceo- 
lata longe acuminata erecta, raro denticulata, inferne 
laxe pellucide et infima basi flavide reticulata, ubique 
margine revoluto, profunde regulariter concave , interdum 
plicata; theca in ped. perbrevi purpureo subinclinata, e 
collo minute. anguste subcernuo - oblonga ; perist. JV. Bo- 
ryanae. 
Pterigynandrum lineolatum Duby in Moritzi Verz, d. Zolling. 
Pf. p. 130. 
