232 Floristik, Geographie, Systematik etc. 



Rhönofebirges, gibt in vorliegender Arbeit eine Neubearbeitung des 

 ersten Teiles seiner Rhönflora, der 1900/01 in der Allgem. bot. 

 Zeitschrift erschienen war und die Pteridophyten umfasst. Nach 

 einigen Bemerkungen, die Umgrenzung des Gebietes betreffend, 

 gibt Verf. unter sorgfältige Berücksichtigung der Formen eine mit 

 zahlreichen kritischen Erläuterungen versehene Aufzählung von 25 

 Polypodiaceen, 1 Osmundacee, 3 Ophioglossaceen, 6 Equisetaceen 

 und 6 Lycopodiaceen, in Summa die bedeutende Zahl von 41 

 Arten. Die Teile II — VIII obiger Publikation sind ebenfalls in ge- 

 nannten Verhandlungen von Bd. XXXIV an erschienen. 



E. Irmscher. 



Baekel, E, und H. Schinz. Gramineae von Neu-Caledonien 

 und den Loy alty-Inseln. (F. Sarasin und J. Roux, Nova Ca- 

 ledonia. Bot. I. 1. W 9. Wiesbaden, C. W. Kreidel. 1914.) 



Verff. zählen die von F. Sarasin in Neu-Caledonien ge- 

 sammelten Gräser auf (19 Arten), wobei neue Formen nicht beschrie- 

 ben sind. E. Irmscher. 



Hayata, B., O n Pseudixus, a new genus of Loranthaceae , f o u n - 

 ded on the well-known and widely distributed species, 

 Viscum japonicum Thunb. (Bot. Mag. Tokyo. XXIX. p. 31—34. 

 1915.) 



The species Viscum japonicum Thunb., widely distributed and 

 generally recognized as a species, is, according to the author, not 

 congeneric with the familiär V. album or V. articulatum. The ori- 

 ginal descriplion of Thunberg was founded on the branches only, 

 not on the flowers. Engler gave Sketches of the plant with female 

 flowers, but says nothing about male flowers The author studied 

 more carefuUy the floral structure of this interesting species and 

 found the male flower to be entirely and even fundamentally dif- 

 ferent from that of a true Viscum. The male flowers of the latter 

 have the stamens invariably arranged opposite the perianth-lobes, 

 with anthers porous on the face and adnate on the back to the 

 perianth-lobes. In V. japonicum the stamens are arranged alterna- 

 tely to the lobes of the perianth, and anthers are two celled, per- 

 fectly initing with one another at the center of the flower, but quite 

 free from the perianth-lobes and bursting when mature in the 

 connate suture or opening with a central pore. The lemale flowers 

 and the fruit are nearly the same as in Viscum. All the differences, 

 when taken together, seem to make it indisputable that the false 

 mistletoe is a plant representing a new genus, Pseudixus, as the 

 author proposes to call it, distinct from Viscum. It would be the 

 most natural way to place this new genus in the subfomily Viscoi- 

 deae and quite close to Viscum. The Latin diagnosis of the new 

 genus will be given by the author in his Icones Plantarum Formo- 

 sanarium, Volume V, now in preparation, 



M. J. Sirks (Haarlem). 



Kränzlin, F., Orchidaceae von Neu-Caledonien und den 

 Loyalty-Inseln. (F. Sarasin und J. Roux, Nova Caledonia. Bot. 

 I. 1. N« 10. Wiesbaden, C. W. Kreidel. 1914.) 



Unter den angeflihrten 24 von F. Sarasin in Neu-Caledonien 

 gesammelten Orchideen sind folgende neu: Thelymitra Sarasiniana 

 Kränzl., Lyperanthus Sarasinianus Kränzl.. Liparis Rouxii Kränzl., 



