HYPNACE*.] 168 [Stereodon. 



Hypnum Swartzii BRID. Sp. muse. II, 178. 

 Stereodon (Pylaisia) incurvatus MITT. 



Hyfinum (Hotnomallium) incurvatnm SCHIMP. Synops. 616 (1860), 2 ed. 746. MILDE 

 Bry. Siles. 357 (1869). 



Plagiotheciiim incurvatnm DE NOT. Epilogo 191 (1869). 



incurvatnm KINDB. Laubm. Schwed. & Norw. 49 (1883). 



Autoicous ; in small glossy yellowish-green tufts. Stem prostrate, 

 the branches irregular, filiform, short, slightly falcate at points. Stem- 

 leaves erecto-patent orsubsecund, lanceolate, gradually subulate-acuminate, 

 flat and entire at margin, nerves two, very short or obsolete. Cells linear, 

 flexuose, elongated at base, quadrate at angles and forming a small 

 triangular group ; branch-leaves smaller and crowded. Perich. bracts 

 erect, inner vaginant, lanceolate, longly acuminate, serrulate towards the 

 point, with two longer faint nerves ; seta pale red, capsule cernuous or 

 horizontal, cylindraceous, curved, castaneous, contracted below mouth 

 when dry ; lid conical, shortly rostellate, peristome yellow, processes of 

 endostome fenestrate along the keel, cilia two, long and nodulose. 



HAB. Rocks and stones in calcareous districts, not common. Fr. 5 6. 



Helk's wood, Ingleton (Nowell) ! ! Kendal (Wilson, 1838). Natland, Sedgwick & Levens 

 Park, Westmoreland (Stabler, 1868). Richmond, Yorks. (R. Barnes) ! ! 



This moss resembles several other small species, especially S. resupinatns 

 and polyanthos, but differs from both by the long acumen to the leaves, and 

 when fertile by the fruit, the capsule in both the others being erect and cylindric. 

 When sterile 5. incurvatus may be best distinguished by the unsymmetric long- 

 pointed leaf. 



12. STEREODON POLYANTHOS (ScJireb.) Mitt. 



Autoicous ; in small bright green tufts, with short erect branches. 

 Leaves erecto-patent, subsecund, oval-lanceolate, acuminate, entire, 

 nerveless. Capsule erect, cylindric, lid conical, peristome inserted below 

 mouth, cilia rudimentary. (T. CXV, C.) 



HOOK. TAYL. Muse. Brit. 2 ed. 

 . Synops. ii, 337 (1851). 



Hypnum myosuroides /?. filiform, WEB. Spic. fl. Goett. 93 (1778). 



). HEDW. Muse, frond, iv, p. 4, t. 2 (1793) 



IS 



'43 ('873 33I> ' 35 (I855)> Eng ' B t- Suppl. t. 2871. HOBK. Synops 



l^ecium polyanthus SPRUCE Ann. Mag. nat. hist. :8 49 . BOUL. Muse. Fr. 146 (1884). 



