HYPNOIDEAE. . NECKERA. 135 
qualibus obtusiusculis v. in stolonem tenerrimum atte- 
nuatis dense foliosis terelibus luride viridibus, dein saepe 
nigricantibus, brevibus simplicibus v. elongatis iterum 
pinnatis fasciculatim ramosissimus ; folia caulina appressa, 
humore subpatentia, e basi hastato- dilatata, alis valde 
undulatis saepius speluncoso- concavis exauriculatis prae- 
dità lanceolata, ad, acumen usque breve planiusculum 
acutum cochleariformi-concava, margine late revoluto vix 
crenulato, nervo ultramedio tenui pallido subcarinato, cel- 
lulis oblique seriatis rhomboidaliter linearibus angustis 
brevibus obscuris tenerrime papillosis, basi infima ad 
nervum pallidioribus; perich. stricta pallida laevia lan- 
ceolato -subulata elongate subpellucide reticulata, para- 
physes permultas exsertas cellulosas nodosiuscule denti- 
culatas includentia; theca in ped. perbrevi flavido laevi 
minute anguste oblonga membranacea fuscidula, operc. 
conico oblique rostellato, calyptra pilosa; perist. d. ext. 
lanceolati albidi laeves membranacei , distincte trabeculati 
et linea media exarati, int. in membrana vix emersa bre- 
viores capillares fugacissimi albi. R^. 
Pilotrichum paraphysale C. Müll. Linn. XIX. p. 216. — An 
P. nigrescens Hsch. in Sieb. Musc, Nov. Hollandiae, No. 14, quoad 
patriam nobis jam suspectum, huc pertineat, e specimine imperfecto 
haud clare elucet. Folia magis carinata et minus cochleariformi - 
concava sunt. — Isothecium radicans Brid. Il. p. 374! — Hypnum 
radicans La Pyl. in Hh. Brid. — Pterigynandrum nigrescens Sw. 
Fl. Ind. Occ. HI, p. 1778. — Hypnum nigrescens Sw. Prodr. Fl. 
Ind. Occ. p. 141. 
B. illecebras robustior amoene nigricanti - lutescens. 
Pterigynandrum illecebrum Brid, Mant. Musc. p. 131. 
Patria. In montibus altissimis Jamaicae ad ramos 
arborum praesertim Anacardii Occidentalis primus legit 
Swartz. Venezuela, prov. Caracas, ad „Los Lagunas” : 
Moritz; Cumbre de Caracas, altitudine 5000 pedum: 
Wagner, 9. Sept. 1949 c. fruct. junioribus, ad lapides 
in societate JV. eylindricaulis. - In Insula Hispaniola 
Thuiller legit. In insula Trinidad Antillarum minorum 
ad St. Cruz et in monte - Tocuche copiosissime legit 
Crüger. 
