70 REVUE BRYOLOGIQUE 



note on the affinity of the present plant ; — « 11 is very near 

 /. grandis Carr. et Pears., but that plant has asymmetric 

 loaves, the postical part being more rounded than the 

 antical ; it is a particular feature of the New Zealand plant 

 that the leaves and stipules are perfectly symmetric. / 

 mndis, also, has the leaves (not always but often) 3 lo- 



ate. » 

 There is a small specimen of /. grandh « on wet rocks, 



Lawson, Blue Mountain, N. S. Wales >>) in the Kew Herb., 

 and in this the largest leaves measure 2 x 1,7S nmi. (Car- 

 rington and Pearson give 1,73 x 1,5 mm.) ; the stipu- 

 les measure 1,3 x 1 mm. /. Slephanii, besides having 

 much larger leaves and stipules, differs in the manner in 

 which the apex of these is bipartite. This is seen most 

 clearly in the case of the stipules, — in /. gmndis the stipule 

 is concave at the base of the sinus, and the sinus is not 

 narrowed towards the base ; in /. Stephanii the apex of 

 the stipule is plane, and the shallow sinus is distinctly 

 narrowed downwards. 



I 



Explanation of Plate. — Fig. L Isotachis Stephanii sp. nov,, 



part of plant, about nat. size (lefthand branch turned round to 

 show the stipules); 2, leaf (flattened) X 47 ; 3, stipule X 17 ; 4, 

 areolation of leaf towards apex X 270 ; 5, areolation of leaf 

 towards base x 270 ; 6, transverse section of stern X 170; 7,8 

 /. grandis Carr. et Pears.— 7, leaf (flattened) X 17; 8, sti- 

 pule X 17. 



■ 



Charlton llouse^ KcWj England, June 1901. 



line variation nonvelle de IIypnum micans Wils- 

 espece irlandaise trouvec dans la Foret-Noire Badoisc 



par Til IIerzog. 



II y a dans les environs de Freiburg, dans la parlie mori- 

 dionale de la Foret Noire une gorge sauvage, nominee 

 u Hexenkuche « pres Oberricd qui souvent a ete le but de 

 mes excursions bryologiquos. Co charmant cndroil abonde 

 d\iucflure remarquablc do mousses, et rautomno dernier 

 j'ai eu la chance d'y Irouvcr onlrc an Ires cspeces oxcessive- 

 meut inlercssanlcs: RhabdofrpA^ia dmlindatn, Dkhiidonljnm 

 flavesccns, Anoodanri'mm cowpnctifm, Fissidms osmnndoidcs, 

 Plcnjqopliyllum lucona^ Plagiolheciiim Mullerianum., JI\]p- 

 mimWlack'ayi , une mousse gracieuse d'une splcudcur vivo 

 qui croissait bloUie centre les humidcs rochers applalis et 

 gneissiques au bord ombrage du ruisseau. Cetle mousse 

 charmante me saula immediatemcnt aux yeux par son aspect 

 etrange, J^examinai les premiers echantillons de suite apres 



