Neckera tetragona C. Müll. Synops. II p. 123. 
Isothecium tetragonum Brid. Bryol. univ. IL p. 3TT. 
Hypnum tetragonum Sw. Prodr. Flor. Ind. occident. p. 142. 
Patria: America central. et austral, in insula Jamaica 
in eaeumine montium (Swartz); Venezuela, Cocollar (Moritz), 
Andes quitens. ad flumen Napo Columbiw (Vi//avicensio), 
in silva Llalla (Spruce), in valle Pallatanga (Spruce); Andes 
peruvian. ad rivulum Chilieaio (Spruce); in Mexico (Bourgeau). 
21. P. pentagona Hpe. e. Ltz. (Bot. Zeit. 1869. Nr. 28 
— Pilotrichum). 
Patria: America austral, Eeuador (Krause). 
22. P. hexasticha Sehwgr. (Suppl. J. II. p. 210 — 
Hypnum). 
Meteorium hexastichum Mitt. Muse. Austr. Amer. p. 432. 
Neckera hexastieha C. Müll. Synops. 1I. p. 126. 
Isothecium hexastichum Brid. Bryol univ. II p. 126. 
Patria: America central, in insulis Hispaniola (TAouin) 
et Cuba, San Jago, Mont Liban 3500" (Funk et Schlim 1844, 
Coll. Linden Nr. 2198). 
23. P. quitensis Mitt. (Musc. Austr. diac. p. 439 — 
Meteorium). 
Hypnum quitense Mitt. in Spruce Catalog. p. 15. Nr. 1042. 
Patria: America austral, Andes quitens. (Jameson), in 
monte Pichincha 11,000* (Spruce Nr. 1042). 
24. P. rigida C. Müll. (Synops. II p. 126 — Neckera). 
Meteorium rigidum Mitt. Muse. Austr. Amer. p. 439. 
Patria: America central, Mexico (Deppe), ad Cordova 
(Bourgeau), Costarica 5000'—8000* (Oerstedt). . 
25. P. pulchella Schpr. (Besch. Prodr. Bryol. mezic. p.78). 
Patria: America central, Mexico, in monte Orizaba 
(F. Müller). 
. 26. P. mexicana Schpr. (Besch.. ProüeaBeydt diafiip. 79). 
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