PRODROMUS FLORA! NOVO-GRANATENSIS. 349 



Ab Humboldtio et Bonpland antea prope Garitam del Paramo, Quin- 

 dio, 1760 hexap., sub nomine P. convoluti L. collectum. 



5. Polytrichum subcontortum Hpe. — Dioicum. Caulis elon- 

 gatus, 2-3-uncialis, adscendens, basi tenuiset nudiusculus, su- 

 perne laxefoliatus, subaequalis, parum clavatus. Folialaxe imbri- 

 cata, convoluto-canaliculata, incurva, inferiorapatentia inflexa, 

 superiora conferta, e basi late ovata vaginante lato-lanceolata, 

 brevi spatio basi integerrima, versus apicem tandem latere 

 inferiore ab medio vaginee modice dentato-serrata, in acumine 

 grosse sinuato-serrata ; nervobasi fuscescente, opaco, laminam 

 lotam occupante, lamelloso-striato ; cellulis basilaribus elongato- 

 quadratis, lateralibus et intermediis densioribus minoribus, 

 angulato-quadratis vel rotundatis, sordide flavescentibus. Seta 

 apicalis, adscendens, uncialis et paulo longior, apice tortilis, ru- 

 bens. Theca parvula, oblongo-cylindrica, subferruginea, oper- 

 culo umbonato conico-subulato cruento, peristomii dentibus 

 brevibus angustis albidis. Calyptra aurea, normalis. 



Bogota, Chapinero, 2700 m., in umbrosis liumidis cum P, andino 

 commixtum, pauca specimina sub n° 20/i^. Octob. 1859 leg. A. Lindig. 



P. contorlo proximum ; ab eo, mihi ex icône Schwaegr., tab. 96, im- 

 perfecta solum cognitum ; peristomii dentibus albidis byalinis satis 

 differt; inler P. semipellucidum et sequens quasi intermedium. 



6. Polytrichum purpurascens Hpe. — Dioicum, gregarium, 

 laxe cespitosum,2-/i-unciale, gracile, fusco-purpurescens. Caulis 

 adscendenti-erectus, basi attenuatus, nudiusculus vel micro- 

 pbyllinus, versus apicem accrescendo anguste clavatus, laxe 

 foliatus. Foliabrevia, convoluto-incurvata, tortilia, laxe accum- 

 bentia vel patenti-tlexuosa ; humida erecto-patula, cucullato- 

 concava, e basi brevi latiore integerrima, diaphana, lato-lan- 

 ceolata, margine basi diapbano, superneobscuro, dorso quoque 

 spinuloso-dentata; nervo ad basin valido, eequali, obscuro, 

 in lamina dilatato, eam fere totam occupante ; cellulis basilari- 

 bus elongato-quadratis, interstitiis nodulosis interruptis, inter- 

 mediis minoribus angulato-rotundatis ad marginem condensatis 

 punctatis. Seta uncialis et longior, erecta, rubra, apice tortilis. 



