HYPNOIDEAE. NECKERA. 667 
densifolio dichotome v. pinnatim ramoso, foliis ovatis acuminatis, 
basi exauriculatis , plerumque secundis et plicatis, cellulis pro more 
rotundatis; theca exserta et immersa; perist. simplex, duplex vel 
nullum. 
Subsectio 1. Pterigynandrum Hdw. emend. ]L p. 91. — 
Caulis siccitate perfecte julaceus, perichaetiis longius exsertis, foliis 
ovate vel lanceolate acuminatis, saepius cochleariformibus , cellulis 
oblongis v. linearibus elongatis. 
103. N. eylindricaulis C. Müll. II. p. 100. 
Patria. Costa Rica, reg. montosa, 9000 — 8000" alt.: 
A. S. Oersted. 
Subsectio Hl, Harrisonia Spreng. Hmp. IL p. 102. — Cau- 
lis teres; theca gymnostoma in ramo brevi veluti terminalis; folia. 
cochleariformi - concava, saepe leviter plicata, cellulis ad parietes 
crenulatis, 3 
107b. N. hygrometrica C. Müll; dioica; caulis flui- 
tans, basi indivisus, foliis parvis plerumque laceratis ob- 
tectus, superne in ramos fastigiatos breves rigidos obtu- 
sos vel apice brevissime cuspidato praeditos sordide viri- : 
des dendroideo - divisus; folia caulina dense imbricata, 
subsquarrosa et vix secunda, erecto - patentia, e basi 
coarctata anguste cymbiformi - lanceolata acuta brevia, 
margine haud limbato integerrimo erecto, superne invo- 
lutaceo, nervis nullis, cellulis anguste linearibus densis 
virentibus, haud crenulatis , alaribus coarctato -impressis 
multis laxissimis amplis pellucidis teneris; perichaetia in 
ramulo fertili longiscente terminalia, foliis late rotundate 
ovatis acutis, e cellulis pachydermibus incrassatis longio- 
ribus areolatis; ped. perbrevis carnosulus in thecam sub- 
cyathiformi - ovalem . pachydermem . laevem - macrostomum 
sensim incrassatus; annulus nullus; operc. conicum obli- 
que acuminatum in columella elevata persistens; . perist. 
d. ext. breves fissi rubiginosi rudimentarii, interni nulli. 
Wardia hygrometrica Harv. in Hook. Companion to the Bot. 
Magaz. 11. p. 183. t. 15. — Schw. Suppl. IV, t. 314. 
Patria. Yn lapidibus rivuli montani prope Paradise 
ad latus orientale montis Tabularis Africae australis: 
Harvey. 
