Mr. R. Spruce on the Musci and Hepatica of the Pyrenees. 287 



The scabrous setcB, the tristriate leaves, and the whole habit of this 

 species bring it so near /. sericeum, that in a natural distribution I 

 apprehend they must be jDlaced in the same genus. Besides, if we 

 compare the fructification, we shall not find very great differences. 

 The capsule of /. lutescens (as above intimated) is sometimes elon- 

 gated and very nearly erect, although never quite symmetrical. The 

 inner peristome, as in /. sericeum and Philippianum, has the cilia either 

 wholly or in part absorbed at the period of maturity, although capsules 

 not quite ripe show slender 2-3-nate cilia. (1 have observed similar 

 circumstances in /. polyanthum.) The chief difference from /. seri' 

 ceum is in the lacunose processes and their very slight granulation. 

 The annulus is double. The inner membrane of the capsule projects 

 beyond its mouth the breadth of the annulus before it is divided. 

 The teeth are strongly trabeculate within and enveloped in a delicate 

 membrane. 



87. /. sericeum, L. Sp. PI. p. 1595 (sub Hypno) ; M. P. 76, 

 Leskea s., Hedw. Muse. Frond. 4. 1. 17. 



Hab. Zo_2 in arboribus, &e. vulgatissimum. 



88. /. Philippianum, Spruce in Muse. Pyr. 77: dioicum; caule 

 prostrate, radieante, diviso ; divisionibus pinnato-ramosis, ramis 

 ereetis, plerumque simplicibus ; foliis dense imbricatis, erectis, 

 lanceolato-acuminatis, striatis, toto ambitu minute denticulatis, 

 nervo percurrente ; pedicello laevi, rarius scabriu^culo ; capsula 

 erecta, symmetrica,, ovato-cylindrica; operculo breviter rostrato, 

 rostro subcurvato ; calyptra dimidiata, glabra. 



Hab. Zj sup. P. c. ad saxa calcarea in umbrosis mentis Lhieris, 

 prope Bagneres-de-Bigorre ; etiam in rupibus graniticis sylvse 

 Bois de Gouerdere dictse, prope B.-de-Luchon. Auctumno et 

 hyemis initio fructificat. 



PlantcE latas plagas efficientes. Caulis 2-6 uncias longus, pinnatus, 

 ramis suberectis, simplicibus, rarius furcatis, hie illic radicans et ist- 

 hinc divisiones pinnato-ramosas edens. Folia densa, erecta, supe- 

 riora nonnunquam (in sicco saltern statu) subsecunda, omnia lanceo- 

 lata seu ovato-lanceolata, acuminata, acumine caulinorum tenuiori, 

 plicato- striata, toto ambitu minute denticulata, nervo continuo in- 

 structa, e cellulis minimis lineari-elongatis areolata, viridia aut auro 

 subnitentia. Florescentia dioica : flores masculos non habui : fmminei 

 cauligeni, elongati, foliis numerosis, 24 et pluribus, erectis, arete va- 

 ginantibus, interioribus acumine setaceo, flexuoso terminatis, leviter 

 plicatis, obsolete nervosis, paraphyses copiosissimas archegoniis lon- 

 giores complectentibus. Vaglnula oblongo-cylindrica, viridis. Pedi- 

 cellus uncialis, Isevis vel rarius et inferne praecipue scabriusculus, sic- 

 citate dextrorsum contortus. Capsula erecta, symmetrica, ovato-cylin- 

 drica, microstoma, pallida. Peristoma externi dentes subulati, qua- 

 drangulares, transverse septati (baud trabeculati) ad basin versus 

 tantum linea media exarati, sparsira papillosi, pallidi ; interni mem- 

 brana profunde (usque ad f ) fissa, lutescens ; processibus dentes fere 



