Floristik, Geographie, Systematik etc. 501 



and its forms. The foUowing new names are to be noted: Setaria 

 italica subsp. stramineofnicta {Paiiicum italicutn var. Metzger), with 

 its f. breviseta {P. italicum brevisetiim DoelL), subvar. germanica 

 {P. germa}iicum Mill.) with a f. mitis {P. italicum var. miti^ Alef.); 

 var. Hostii {P. italicum Host) with its subvar. Metsgen {P. italicum 

 var. Metsgeri Körn.) with a f. cuvtiseta; var. bnmneoseta with a f. 

 bvachychaeta and a subvar. deiisior; subsp. rubrofructa [P. italicum. 

 var. erythrospennum Körn.) with its var. gigas {P. italicum var. 

 gigas Körn.) and subvar. pabularis (P. italicum pabularis Alef.); var. 

 purpureosetosa with a subvar. violacea (P. italicum. var. violaceum 

 Alef.); var. rubra {P. italicum var. rubrum Körn.), f. aurantiaca [P. 

 italicum var. aurantiaceum Körn.), and subvar. coudensata; and 

 tiigrofructa {P. italicum var. uigrum Körn.). The paper closes with 

 reference to the foregoing names of various cultivated forms of 

 millet, and notes on various plants commonly treated and pertaining 

 to S. italica but believed by the writer to be placeable elsewhere. 



Trelease. 



Hubbard, T., On Eragrostis cilianensis (All.) Vignolo Lutati. 

 (Philippine Journ. Sei. C. Botany. VIII. p. 159—161. May 1913.) 



Acceptance of Eragrostis cilianensis Vign. Lut. Poa cilianensis 

 All.) for what is commonly known as E. major or E. megastachya. 



Trelease. 



JefPeries, T. A., Ecologv of the Purple Heath Grass {Mo- 

 linia caerulea). (Jour. Ecology. III. 2. p. 93—109. 2 pl. 3 figs. 1915.) 



The studies were conducted near Huddersfield (Yorkshire) 

 on moorland areas where Molinia enters into competition with Cal- 

 luna, Eriophorum, Nardus, and grassland formerly under cultiva- 

 tion (cf. map). A preliminary account of Molinia deals with mode 

 of growth of the vegetative organs. The dwarfed growth of moor- 

 land Molinia is ascribed to adverse conditions in early summ.er. 

 so that the plant tends to retain a yellowish and partially withered 

 condition. The factors operating in the distribution are considered, 

 and the general conclusion is that "the distribution oi Molinia depends 

 primarily upon an abundant supply of relatively fresh water, — 

 whenever Stagnation becomes pronounced, so that the water is 

 badly aerated and excessively acid, Molinia tends to degenerate". 

 It requires more soil-water than Calluna and Nardus, and when 

 competing with Eriophorum it follows the distribution of the more 

 mobile water supply. (This confirms our experience in other areas). 

 Examination of soil content and acidity confirm this conclusion. 



Special attention is given to the invasion and retrogression of 

 Molinia. As regards invasion, observations show that grains germi- 

 nate abundantly, e. g. in sun-cracks on dried denuded peat, and 

 amongst accumulations of plant remains in shallow hollows. The 

 main lines of advance in colonisation are along streams and flushes, 

 whereby the species extends into Calluna, etc., and into Betula- 

 Querctts-woods. A common moorland succession is Callunetum, Mo- 

 linetum, Erioplioretum. The plates include 13 photographs of Moli- 

 nia habitats, etc. W. G. Smith. 



Kränzlin, F., Cyrtandraceae novae philippinenses. I. (Philip. 

 Journ. Sei. C. Bot. VIII. p. 163-179. May 1913.) 



Contains as new: Aeschynanthus Foxworthyi, A. camiguinensis. 



