226 SUMMARY OF CURRENT RESEARCHES RELATING TO 



round-leaved species. He does not approve of K. Mailer's recent treat- 

 ment of the group in Rabenhorst's Kryptogamenflora, because it is 

 incomplete and misleading as to some of the rarer and forgotten species. 

 Schiffner has examined the type-specimens of these species, and now 

 publishes his results. 1. Jungermannia scalariformis Nees was so badly 

 described by Nees as to give the impression that the plant was dioicous 

 and allied to Aplozia csespiticia. Limpricht found it to be paroicous and 

 regarded it as identical with Jungermannia nana Nees. Later Breidler 

 separated Aplozia lurida from A. nana, and K. Midler gave to A. Inrida 

 the new binomial H aplozia Breidleri — and it is to this latter that Junger- 

 mannia scalariformis Nees is to be referred. But Schiffner shows that 

 according to the rule of priority the name must be Aplozia scalariformis. 

 The plant has nothing to do with A. sphserocarpa. 2. Jungermannia 

 tersa Nees was endowed with three varieties by Nees. Schiffner has 

 carefully examined all the material of the species in Nees' herbarium, 

 and gives the corrected determination of each plant. As a result he con- 

 demns Nees 1 varieties as untenable. 8. Jungermannia Goulardi Husnot 

 is in Schiffner's opinion to be regarded as Aplozia nana var. Goulardi. 

 4. Jungermannia confertissima Nees is shown by an examination of the 

 original specimens to be Aplozia nana var. confertissima, and to differ 

 from A. nana in having a very compact, closely felted, upright habit, 

 with profuse long rhizoids and small close adpressed leaves. It is very 

 near to the above-mentioned var. Goulardi. 



G-rimmia pilosissima.* — T. Herzog publishes a description and 

 figures of Grimmia pilosissima, a new species gathered on rocks on the 

 crest of Monte Gennargentu in Sardinia, at an altitude of nearly G000 ft. 

 It is distinguished at sight by its bright yellowish colour and its arach- 

 noid system of long white hair-points. 



Rare Species of Bryum. — E. Bauer t publishes notes on some of 

 the more critical species recently issued in his Exsiccati, for instance 

 Bryum ammophilum Buthe, B. arvernense Douin, B. csespiticium var. 

 transiens Podp., B. oratum Jur., B. sagittsefolium Culm. 



T. Suse % gives a description of Scorpiurium leskeoides, a new species 

 collected at Riva on the Garda See. It is a plant of the Mediterranean 

 type, and was found in a protected situation. 



J. Baurngartner § states his views about the position of Hgpnum 

 Schimperianum Lorentz from its original locality, Windisch Matrei in 

 Tyrol. He regards it as conspecific with the true Hgpnum molle Dicks, 

 and as distinct from H. molle var. Schimperianum of Juratzka's 

 herbarium and of Schimper's Synopsis. 



Figures of Hepatic Genera. || — C. Lacouture, before his death, 

 prepared for publication an illustrated synoptic key to all known genera 

 of the Hepaticaa. These are now published. The Lejeuneaj were 

 previously treated in the same way and were published in the Revue 

 Bryologique in 11)08. 



* Rev. Bryolog., xxxviii. (1911) pp. 12-13 (figs.). 



t Deutsche Botan. Monatsschr., xxii. (1910), pp. 7-8. 



\ Tom. cit., pp. 2-3. § Tom. cit. (1911) pp. 46-47. 



|| Dijon : Libr. Venot, 1910, 46 pp. (pis.). 



