288 Mr. R. Spruce on the Musci and Hepaticce of the Pyrenees. 



sequantibus, lineari-subulatis, solidls, papillis minutissimis opacis ob- 

 sitis, unde fuligine quasi oblitis, ciliis interjectis nullis seu rudimen- 

 tariis. ^wwm/m5 e duplici serie cellularum. conflatus. Operculum hre- 

 viter rostratum, rostro subinclinato. Calyptra dimidiata, glabra, cap- 

 sulam fere to tarn obtegens. Semina minutissima, minute granulosa. 

 Ab Isothecio sericeo nitore minus spectahili, ramis siccitate vix cur- 

 vatis,/o/u nervo perdurante, pedicello suhlavi, calyptra (etiam juvenili) 

 glaherrima, peristoma dentibus minime (I. sericei instar) e septis in 

 facie externa internaque prominulis traheculatis, notisque aliis difFert. 

 Ab /. lutescente foliis solidinerviis, capsula erecta symmetrica, ut et 

 peristomii interni configuratione distinguitur. 



Tab. II. 1, 2, Z. folia aucta; 4. apex folii magis aucta ; 5. capsula 

 aucta ; 6. peristomii pars; 7. ejusdem dens externus a latere visus, 

 2^0-ies auct. ; 8. dens peristomii Isothecii sericei a latere visus, ad id. 

 augm. 



§ 3. RUFESCENTIA. 



89. /. rufescens, Dicks. Cr. Ease. 3. t. 8. f. 4 (sub Hypno) ; 

 M. P. 78. 



Hab. Zi sup. in monte Lhieris et juxta aquas diet, les Eaux 

 Chaudes, ad rupes calcareas irroratas. In Pyrenseis (Bridel). 



90. /. chryseum, Schwgr. in Scliultes Reise auf den Glockner, 

 2. p. 364 (sub Hypno). Leskea rufescens ^. chrysea, Brid. Br. 

 Univ. 2. p. 286. 



Hab. Z2_4 P. occ. et c. in rupium humidarum fissuris. Col de 

 Louvie. Esquierry. Bois de Sajust. 



This is the moss mentioned in my ' Musci and Hepaticse of Tees- 

 dale ' (Annals, 1844) under no. 91, Hypnum multiflorum, TayL, of 

 which, in deference to Dr. Taylor's opinion, I considered it a form. 

 It is however quite distinct from both that species and /. rufescens, 

 and is not like the latter confined to calcareous rocks. 



§ 4. PoLYTANTHA. 



91. /. polyanthum, Schreb. Fl. Lips. p. 97 (sub Hypno); 

 M. P. 79. Leskea p. y Hedw. Muse. Frond. 4. t. 2. 



Hab. Z, P. c. in Tilise unicse trunco juxta theruias oppidi Ba- 

 gneres-de-huchon ; necnon in sepibus prope Arreau : rarius. 



92. /. repens, Brid. Suppl. Muse. p. 131 (sub Pterigynandro) ; 

 M. P. 80 ; Schwgr. Suppl. t. 27, et t. 246 B (sub Neckera). 



Hab. Zi inf. P. occ. et c. in arborum praesertim Castanearum 

 radicibus circa Pau et B.-de-Bigorre. 



Peristomium duplex : dentes externi pallidi : interius ad basin usque 

 in cilia brunnea, tenuissima, ssepe apice inter se anastomosantia, e 

 cellularum serie singula (rarius ex parte duplici) conflata, fissum. 



93. /. striatum, Schwgr. Suppl. t. 27 (sub Pterogonio) et 

 t. 246 A. (sub Neckera) ; M. P. 81. 



Hab. Zg P. c. pulcherrime fructiferum in fruticum ramulis ad 



