r Wf: 
Bryophyten. — Pteridophyten. — Floristik etc. 601 
Schffn.; sie ist so reichlich gesammelt, dass sie in Schiffners „Hepa- 
ticae europ. exsiccatae” zur Ausgabe gelangen kann; der ausführli¬ 
chen Diagnose ist eine Tafel beigegeben, die zum Vergleich auch 
die Abbildung einzelner Organe nächst verwandter Arten enthält. 
Pflanzengeographisch sind folgende Arten von Interesse, welche 
in dem behandelten Gebiete zum ersten Male gesammelt worden 
sind: Riccia macvocarpa Lev., Riccia Raddiana Jack & Lev.. Riccia 
subbifurca Warnst, var. eutricha Schffn. Riccardia pinguis (L.) Gray. 
Fossombronia Husnoti Corb. Marsupella emargincita (Ehrh.) Dum. 
Calypogeici ericetorum Raddi. Lophozia barbata (Schmid) Dum. Lo- 
phozia bicrenata (Ldbg.) Dum. Cephalozia bicuspidata (L.) Dum. Prio- 
nolobus dentatus (Raddi) Schffn. Scapania nemorosa (L.) Dum. Mar- 
chesinia Mackayi (Hook.) Gray. F. Stephani. 
Chiovenda, A., Asteraceae. Species novae in excelsis Ruwen- 
zori in expeditione Ducis Aprutii lectae. (Ann. di Bot. 
VII. 1. p. 177. 1908.) 
Espece nouvelle & Erlangen ( Botvyocline ): E. sqnavrosula. 
F. Cortesi (Roma). 
4 
Kirsch, S., On the development and function of certain 
structures in the stipe and rhizome of Pteris aquilina and 
other Pteridophvtes. (Trans. Royal. Soc. of Canada 1. IV. p. 353— 
412. pls. 11. 1908.) ~ 
The “cavity-parenchyma” which occupies the place of the disor- 
ganized protoxylem in various ferns is shown to originate as proli- 
ferations from cells of the xylem parenchyma, and is identified as 
tyloses by the writer. In Pteris aquilina the growths in question 
are found in the stipe and in all regions of the rhizome, where it 
occurs in the outer System of bundles. The writer offers the fol- 
lowing theory of the cause of the growths: the cavity formed by 
disintegration of the protoxylem at first functions as a water duct; 
later the metaxylem makes its appearance and performs that function. 
Hence the pressure in the cavity is reduced, and “tyloses” grow 
into it. M. A. Chrysler. 
Fiori, A., A. Beguinot et R. Pampanini. Schedae ad flo- 
ram italicam exsiccatam. Centuria VIII. (Nuovo Gior- 
nale bot. it., n. s., vol. XV. p. 307—354. 1908.) 
Cette nouvelle Centurie du „Flora italica exsiccata” contient 
deux nouvelles entites: Timbristylis dichotoma Vahl forma gracilis 
Goir., des environs de Nice, et Galanthus Imperati Bertol. forma 
australis Zodda, du territoire de Messine; le Malica pyramidalis 
Lam., le Muscari Kerneri March, et VIris cengialti Ambr. provenant 
des leurs localites classiques; des series de Sesleria, Melica, Bromus, 
Parietaria, Spergularia et Sagina et enfin plusieurs especes rares ou 
interessantes ä divers titres. R. Pampanini. 
Golesco, R., Especes ligneuses spontanees dans les mon- 
tagnes du district de Muscel en Roumanie. (Bull. Soc. dendrol. 
France, V. p. 101-102. VI. p. 173—180. 1907.) 
Le district de Muscel s’eleve au N. de la Roumanie et comprend 
les plus hauts sommets des Alpes de Transylvanie. En dehors de 
