10 Floristik, Geographie, Systematik etc. 



et P. pulchrum du Tonkin. L'auteur complete en outre la diagnose 

 du P. Balansae Aug. DC. et eleve au rang d'espece le P. pauciflo- 

 rtim var. brevicalyx Oliv. J. Offner. 



Gandoger, M., Flore du littoral mediterraneen du Maroc. 

 (Bull. Sog. bot. France. 1908. LV. p. 561—567 et 656—659.) 



Dans les listes d'especes recoltees par l'auteur aux environs de 

 Melilla, au Cabo de Aguas et dans les iles Zafarines, sont 

 signalees et decrites les nouveautes s\x'wa.ntes\ Picris {Spitseliä) Pitar- 

 diana Gdgr., Sonchus Briqiietianns Gdgr., vS". Gandogeri Pitard., Ge- 

 nista spartioides X quadrifiora Gdgr., Koniga rnaroccana Gdgr., As- 

 phodelus inaroccanus Gdgr. et Avena rnaroccana Gdgr. J. Offner. 



Gow, J. E., Studies in Araceae. (Botan. Gaz. XL VI. p. 35—42. pls. 

 4-6. July. 1908.) 



An outline is given of the development of the ovule, embryo- 

 sac and embryo in Nephthytis Gravenreuthii, Dieffenbachia daraqui- 

 niana and Aglaonema versicolor. The shape of the ovules presents 

 certain peculiarities. Polyembryony was observed in the first genus. 



M. A. Chrysler. 



Guillaumin, A., Burseracees nouvelles ou peu connues de 

 l'Indo-Chine. (Bull. Soc. bot. France. 1908. LV. p. 611—618. pl. 

 XIX. [1909].) 



L'auteur decrit cinq Canarium nouveaux: C. vittatistipidatum , C. 

 cinereum, C. subulatum, C. rotundifolitun et C. Thorelianum, assez 

 peu distinct des C. sikkimense et tomento^nm, pour qu'on doive etre 

 probablement amene ä reunir ces trois especes en une seule. II com- 

 plete en outre la description du C. albuni Roeusch et donne de cette 

 plante une definition precise; les C. albunt et lusonicunt sont peut- 

 etre identiques. J. Offner. 



H(einsley), W. B., Asiatic Lardisabalaceae. (Kew Bull, of Mise. Inf., 

 1908. p. 459—461.) 



A defence of the author's reduction in Hooker's Icones Plan- 

 tarum, tt. 2847 — 2849, of Holboellia, Wall., and Parvatia, Decne, to 

 Stauritonia, DC. , a course criticised and reversed by F. Gagnepain 

 in Bull. Mus. Hist. Nat. Par., 1908, p. 64—70. Mr. Gagnepain atta- 

 ches generic importance to the presence, or absence, of nectaries, 

 petals of some botanists, but he appears to have overlooked the 

 presence of staminodes in some of the species. The essential or 

 differential characters of the genera, as accepted by Gagnepain. 

 are limited to slight modifications in the male flowers: 



Presence of nectaries associated with free stamens Holboellia. 

 „ „ „ „ „ more or less 



united stamens Parvatia. 



Absence of nectaries; stamens united .... Staiintonia. 



Mr. Gagnepain does not attempt to show that there are other 

 differences, and, it may be added, there are none, in the vegetative 

 characters. Including Holboellia and Parvatia, Staiintonia constitutes 

 a genus as distinct as Decaisnea, Akebia and Sinojranchetia. 



In some species of Stauntonia, in the broad sense, there are both 

 nectaries and staminodes in the female flowers, as separate organs. 



