458 Bacteriologie. — Bryoph3'^ten. 



Die untersuchten Bakterien- und Pilzfarbstoffe fungieren nicht 

 als Sauerstoffüberträger, sondern nur als Sauerstoffspeicher. Ver- 

 schiedene Carotin- und xanthophyllhaltige Pflanzenteile (Blätter, 

 Früchte u.s.w.) zeigten die Fähigkeit der Sauerstoffspeicherung nicht. 



O. Damm. 



Dixon, H. N., A re mar kable form of DicraneUa heteronialla 

 Schimp. (Journ. Bot. L. p. 306-308. October 1912.) 



The form described has abnormal sporophores. The capsules, 

 gathered in May 1912, instead of being elongate brown inclined 

 plicate and borne on long pale setae, are short small deep-red erect 

 symmetrical smooth vvide-mouthed and borne on very short red 

 setae. The form is not a hybrid of D. heteromalla and D. vnria; 

 for the latter species does not grow in the neighbourhood (near 

 Hungerford, Wilts.). The cause of the abnormality must be sought 

 in climatic conditions, namel3^ the extreme heat and drought of 

 July 1911. A. Gepp. 



Dixon, H. N., On some Irish Forms of Fissideiis. (Journ. Bot. 

 XLVIII. p. 145-149. 1 pl. London 1910.) 



The author gives a diagnosis of Fissidens exsul, a new species, 

 and an account of a curious form of F. rufuhis with variable leaf- 

 margin. F. exsul was found in the Palm House at Glasnevin Botanic 

 Gardens. It is allied to F. tequendamensis and F. algarvicus, differing 

 in habit and size, inflorescence, etc. And with those 2 species is 

 shown to possess a most remarkable peristome, the lamellae on the 

 inner face of the teeth being extraordinarily developed and fringed 

 at the end with delicate ciliate branches. F. exsul is distinguished 

 from all European species by its leaf apex and areolation. 



A. Gepp. 



Ingham, W., A new British Hepatic. Cephalosiella pulchella 

 C. Jens. (The Naturalist. N^ 671. p. 367. London Dec. 1912.) 



The author records the discov^ery of Cephalomella pulchella on 

 Skipwith Common, E. Yorkshire. It was determined by 

 Mons. Douin, who describes it as much better characterised than 

 the type plant gathered at Skagen in 1893, and figured in the 

 Revue Bryologique 1893. A. Gepp. 



Nicholson, W. E., Mavsupella apiculata Schiffn. in B ritain. 

 (Journ. Bot. L. p. 367-368. London 1912.) 



The author records the occurrence of Mavsupella apiculata on 

 Ben Muich Dhui last July, near melting snow at an altitude of 

 3700 ft., in Company with M. condensata, M. Stahleri, Gymnomitriutn 

 varians. etc. and he publishes an English description of the plant, 

 adding some critical notes. The plant is an addition to the British 

 flora. A. Gepp. 



Mc Andre'w, J., Notes on some xMosses from theThree 

 Lothians. (Scottish bot. Rev. l. p. 202— 205. Edinburgh, Oct. 1912.) 



This consists principally of a list of new records gathered in 

 the Lothians since the publication of the Census Catalogue of Bri- 

 tish Mosses in 1907. Interspersed are some notes. A. Gepp. 



