Pteridophyten. — Floristik und Systematik der Phanerogamen. 315 



1. The sporophyll, especially in the region of most favourable 

 nutrition, may fork a seconc! time, either on one or both sides, 

 a synangium being present at the base of each fork. 2. The 

 synangium may be raised up on a larger or shorter stalk. 

 3. The place of the synangium may be taken by a sterile leaf; 

 this occLirs especially at the iipper limit of a stertile zone. The 

 author points out that these variations, especially the repeated 

 dichotomy of the sporophylls, Supports the view that the sporo- 

 phyll with its synangium in the Psiloteae is most nearly com- 

 parable with the bract and its sporangiophores in the Spheno- 

 phy Haies. He concludes that although we are justified in 

 „including the Psiloteae in the class Sphenophyllales, they yet 

 form a family rather remote from the Shenophylleae." 



W. H. Lang. 



Malme, Gust., 0. A. : n, Ex h e r b a r i o R e g n e 1 1 i a n o. — A d - 

 JLimenta ad floram phanerogamicam Brasiliae 

 terrarumque adjacentium cogn oscendam. Part, 

 quinta (Violaceae, Viiaceae, Rhamnaceae, Eriocaiilaceae). 

 (Bihang tili K. Svenska Vetenskaps-Akademiens Handlingar. 

 Band XXVII. Stockholm 1901. Afd. III. No. II. 38 pp. 

 Mit 2 Tafeln, 5 Textfiguren,) 



Verf. liefert weitere Beiträge zur Flora von Brasilien, Paraguay und 

 Argentinien. Es werden folgende Familien behandelt: Violaceae (IZ kxi^w), 

 Vitaceae (14 Arten), Rhamnaceae (8 Arten), Eriocaiilaceae (21 Arten). 



Neu sind: Cisstis lanceolata Malme (Minas Geraes), Zizyphiis gna- 

 raiitica Malme (Paraguay) und Paepalanthns (Eiipaepalanthus) caldensis 

 Malme (Minas Geraes). 



Ausser diesen werden mehrere unvollständig bekannte Arten aus- 

 führlich beschrieben. ^ Die Textfiguren beziehen sich auf einige Cissiis- 

 Arten. Grevillius (Kempen a. Rh.). 



Ostenfeld, C. H„ Halophila Aschersonil n. sp. (Kjöbenhavn. 

 Bot. Tidskrift. XXIV. 3. p. 239—240. Separates issued. 

 Jan. 10. 1902.) 



A new species of the order Myclrocliaritaceae : Halophila Ascher- 

 sonil Ostf. is described and figured from the Danish West-Indian Island 

 St. Croix, where it grows together with //. Baillonis Aschs. amongst 

 marine algae. 



The author announces a monograph of the genus Halophila and 

 begs botanists and institutions to send him specimens for revision. 



He divides the genus into the following sections: 



1. Spiniilosae, II. Americanae, IM. Typicae, IV. Pusillae, which are 

 shortly characterised. C. H. Ostenfeld. 



Ostenfeld , C. H. , Ranunculaceae c o 1 1 e c t e d b y v e 

 Paulsen during the Danish Expedition to Asia 

 Media in 189 8—189 9. (Kjöbenhavn. Nath. Medd. 1901. 

 p. 309—321. Separates issued. Jan. 15. 1902.) 



From the Danish scientific expedition to Asia Media the 

 botanist. Mag. sc. Ove Paulsen brought home a large 

 collection of plants especially from Pamir. 



