Floristik, Geographie, Systematik etc. 537 



Crataegus papers by Sargent. The following new names are published 

 by the author: Crataegus verrucaulis, Clavala ornatipes, Clitopüus sub- 

 planus, Hammula pidchrifolia, Hygrophorus coloratiis, Myxosporium 

 necans, Nolanea stmveolens, Psilocybe conissans {Clitopüus conissans 

 Pk.), Clytocybe subcyathiformis , and in a revision of the New York 

 species of the genus, Phobota duroides. Trelease. 



Raunkiser, C, Om Livsformen hos Tiissüago farfarus. (On the 

 life-forms of T. f.). (Botanisk Tidsskrift. XXVIII. p. 203—210. 

 Köbenhavn 1907.) 



The System of life-forms of plants, established b}^ the author, 

 is based upon the degree of protection afforded to the buds survi- 

 ving the unfavourable season (see B. C. 105. p. 332). As to Tussilago 

 farfarus, Raunkiser has previously classed it among the hemicryp- 

 tophytes, like other authors supposing that the wintering buds are 

 placed in the earth's crust. But a closer examination has shown 

 that the vegetative buds of all leaf-rosettes appearing in summer- 

 time in the earth's crust do not survive the winter, at any rate in 

 Den mark. On the other hand flower-buds survive the winter in the 

 earth's crust, but as the individual not depends upon these, Tussi- 

 lago farfarus is to be classed among the cryptophytes, i.e. the 

 plants whose wintering buds are covered by the earth. 



It would be interesting to know whether Tussilago farfarus in 

 more gentle climates is a hemicryptoph3^te, and it is the authors 

 hope that some botanist in central or southern Europe would be 

 interested in this question. Ove Paulsen. 



Samuelsson, G., Nägra Archieracier frän Västerbotten. 

 [Einige Archieracien aus Västerbotten]. (Sv. bot. Tidskr. II. 

 p. 139-141. 1908.) 



Enthält ein Verzeichniss der vom V'^erf. im Juli 1905 in der 

 Nähe von Skellefteä eingesammelten Hieracia silvaticiformia und 

 vtdgatiformia. Jener Gruppe gehört eine neubeschriebene Art {H. 

 orthorhachis G. Sam.) an. R, E. Fries. 



Schlechter, R., Beiträge zur Kenntnis der Asclepiaäaceen des 

 Monsun-Gebietes. (Engler's botanische Jahrb. XL. 3. Beibl. n". 

 92. p. 1 — 19. Mit 2 Tafeln. 1908.) 



Neue Gattungen: Oistonema Schltr., Anatropanthus Schltr., 

 Neue Arten: Toxocarpus borneaisis Schltr., J. ^osse«s« Schltr., 

 Tylophora coilolepis Schltr., T. labuanensis Schltr., T. perlaxa Schltr., 

 T. physocarpa Schltr., T. polyantha Schltr., T. samoensis Schltr., T. 

 stelligera Schltr., T. Treubiana Schltr., Conchophyllurn angidatiim 

 Schltr., C. pridnosuni Schltr., Dischidia asperifolia Schltr., D. Baeuer- 

 lenii Schltr., D. crassifolia Zippel, D. cyclophylla Schltr., D. doli- 

 cha)itha Schltr., D. indragiriensis Schltr., D. insidaris Schltr., D. mi- 

 crophylla Schltr., D. roseo-ßavida Schltr., D. reniformis Schltr., D. 

 Zollingeri Schltr., Oistonema dischidioides Schltr. (Taf. I), Hoya 

 aeschynanthoides Schltr., H. bandaensis Schltr., H. glabra Schltr., H. 

 gracilis Schltr., H. Naumannii Schltr., H. parvifolia Schltr., H. 

 Treubiana Schltr., Physostehna Betchei Schltr., Marsdenia (§ Stepha- 

 notis) Suitanis Schltr., Gymnema Chahnersii Schltr., G. tricholepis 

 Schltr., Anatropanthus borneew^is Schltr. (Tafel II). 



W. Wangerin (Burg bei Magdeburg). 



