12 V. F. Brotherus. 



31. Mnium marginatum (Dicks.) Palis. 



Syn. Astrophyllum marginatuin Lindb. 

 Mnium senatum Br. eur. 



Ad rupes schistosas a regione silvatica media usque in alpinam inferio- 

 rem. Fertile. 



Cauc. major occ: Radscha, Uzeri, Gebi (Prick !). 



Cauc. major centr.: Ossetia, in montions Lagermanzech et Suarkom 

 ad. fl. Didi Liachva, in monte Zomorasch pr. Ress ad fontes fl. Terek, Balta, 

 Lars et Kobi ad. fl. Terek, ad pedem montis Kasbek. 



Cauc. minor centr.: ad rivnlnm Kodschori pr. Tiflis (Ruprecht!). 



Cauc. minor or.: in reg. alp. montis Ksepesdagh (Kolenati!). 



32. Mnium immarginatum n. sp. 



Syn. Astrophyllum immarginatum Lindb. n. sp. in sched. 



Dioicum; laxe caespitosnm, caespitibus inferne brunneo-tomentosis, sn- 

 perne laete viridibus, aetate pallide ochraceis, haud nitidis; caulis niger, ad 

 3 cm. usque altus, simplex, rigidus, erectus, plantae sterilis apice curvatus, 

 plantae femineae strictus; folia rigida, sicca imbricata, haud crispata, humida 

 patentia, carinato-concava, leniter decurrentia, infima remota, squam?eformia, su- 

 periora sensim confertiora et majora, elongato-oblonga, acuminata, acuta, usque 

 ad 3,5 mm. longa et 1 mm. lata, laevissima, marginibus planis vel leniter re- 

 curvis, haud incrassatis vel limbatis, foliis infimis exceptis apice remote, insequa- 

 liter et simpliciter serratis, nervo summo apice dissoluto, e basi rubro latiore 

 (c. 0,i3 mm.) sensim angustiore, dorso superne remote serrato, cellulis lsevissi- 

 mis, chlorophyllosis, valde incrassatis, ubique fere aequalibus, 'subrotundis, 0,012 

 — 0,oi5 mm. diam.; perichcetium terminale, bracteis externis fohis angustiori- 

 bus, interioribus sensim minoribus, intimis lanceolato-subulatis, cellulis basilari- 

 bus omnium hyalinis, elongatis, marginibusque planis, archegonia sat numerosa 

 et paraphyses filiformes includentibus. Caetera ignota. 



Ad radices arborum et ad rupes calcareas vel schistosas umbrosas, humo 

 obtectas regionis silvaticae mediae. Sterile. 



Cauc. major occ: Radscha, Uzeri. 



Cauc. major centr.: Ossetia, Balta et Lars ad fl. Terek. 



Cauc. minor centr.: Carthalinia, Borschom. 



Species valde peculiaris, habitu Mn. orthorrhyncho admodum similis, 

 foliis haud limbatis, simpliciter serratis facillime dignoscenda. Speciem aliam 

 affinem (Mn arcuatum Broth. in herb.) in Japonia anno 1890 detexit et bé- 

 névole communicavit Cel. Prof. Dr. H. Mayr. 



