47 



Micrasterias speciosa, n. 6p. — Small, somewhat 

 longer than broad, fivelobed: lateral lobes unequal, the basal 

 lobes usually with only half as many divisions as the inter- 

 mediate ones; basal lobe bifid, and intermediate lobes twice 

 bifid; the angles of each section drawn out into two spine- 

 like points; terminal lobe rather narrow, linear; end exserted 

 and much dilated, usually with three prominent mucros at 

 each angle, centre retuse and raised, standing free, with a 

 gap between it and the intermediate lobes; a series of small 

 spines often to be observed on the margins of the lobes. 

 Diameter of Florida form 95 fi; length 110 ^; of New 

 Jersey form, diameter 125-150 n-, length 155—165 f*- 



This species is nearly related to M. radiosa, var. ornata, 

 Nord., but is smaller; the lobes are not so often and so 

 deeply intersected, and the polar lobe is more exserted and 

 has ttie end more dilated, 



(Schluss folgt.) * / 



Neue Literatur. 



a) Cryptogamae vasculare b, 



Eabenhorst's Kryptogamenflora von Deutschland etc. III. Bd. : 

 Lurssen, Die Farnpflanzen. 5. Lfg. Leipzig 1885. 



Stahl, E. Eiafluss der Beleuchtungsricbtung auf die Theilime 

 der Equiaetumsporeii. (Bericbte d. d. botan. Gesellsch. 111. Bd. 



Heft 9) 



b) Musci. 



Bericht iiber die 8. Versammlung des westpreussischen botanisch- 

 loologischen Vereins zu Dirschau 1885. (Enthalt u. A. mebrere 

 Verzeicbnisse von Moosen.) 



Besnard, A. Mousses des environs de St. James. (Revue bryol. 



bemeter, Cb. Entodon cladorrbizana, Scbleicberi et transsyl- 



vanicus. (Ebenda 18H5 No. 6.) 



dn Noday, 0. Notes bryologiques. (Ebenda 188b. «o. 1.) 

 Philibert. Etudes sur le peristome. (Ebenda 1885. No. 6.) 

 Phillbert. La fructification du Didymodon ruber. (Ebenda i885. 



' KolL Zur Systematik der Torfmooae. (Flora 1885. No. 32, 33.) 



Stapf.O. Die botanischeu Ergebnisse der Polak'schen Expedition 



nach Persien im Jahre 1882. I. llieil. (Enthalt einige von C. I-ehlner 



bearbeitete Moose.) ^ .^ .x- i xr ^ i- i. 



Stirton, J. Kew Mosses from Scotland. (Scottish Aaturalist 



No. XI. Januar 1886.) , . 



Venturi. Grimmia sessitana et Grimmia ancepa. (Revue bryolog. 



1885. No. 6.) ^ ■ ^^ ^ 



Wirnstorf, C Moosflora der Provinz Brandenburg, (^--A. aus 



d. Abhandl. d, Botan. Vereins der Provinz Brandenburg XXVllO 



c) Algae. 

 G. Battai de Toni e D. Levi. Flora algologica della Venezia. I- 

 (Estr. d. Atti del li. Istituto veneto di scienze etc. III. Ser. 6.) 



