Floristik, Geographie, S^'stematik etc. 489 



Ridley, H. N., On a collection of plants from Gunong 

 Men2;kian«- Lebah, Selangor. (Journ. Fed. Malay States 

 Museum. V/2. p. 28—50. 1914.) 



An enumeration of a small collection of plants containing 27 

 novelties, all described by Ridley: Calophylhim rotundifolium , 

 Elaeocarpus eviobotryoides, E. leptouiischiis, Hex Myrtillus, Eiigenia 

 selangorensis, E. spissifolia, E. rJiojnboiäea , Souerila raniosa, Begonia 

 monticola, Avgosteninia debile, Cephaelis sicbcoriacea, Vaccivhim de- 

 concm, V. ardisioides, RJiododeiidwn coriisciun, R. calocodon, R. orioii, 

 Marsdenia stellaris, Dischidia parvifolia, Fagraea gnrdenioides, Filetis 

 glabrn, Justicia vegeta, Actinodaphiie concinna, Lindera selangorensis, 

 Quercus Robinsonii, Biilbophylluni aranifeyum, B. selangorense, and 

 Eria pyrrhotricha. W. G. Craib (Kew). 



Rubel, E. A., The Forests of the Western Cau casus. 

 (Jour. Ecology. II. p. 39—42. 3 pls. 1914,) 



The author outlines the features of extensive areas of primeval 

 forest observed during Prof. Rikli's Caucasus excursion in 1912. 

 The object of the paper is to demonstrate that these forests have 

 a greater physiognomic resemblance to the forests of Central 

 Europe, than to the Mediterranean scleroph5''lloustype, and that 

 the forest communities each represent the climax of its own climate. 

 The Sketch begins with the mixed deciduous forests of Abchasia 

 (Colchis). The country is moist and statistics are given to show that 

 it has an oceanic climate as defined by Brockmann and Rubel. 

 The forest is deciduous, but the undergrowth is partially evergreen. 

 At higher altitudes Fagiis forest occurs and tvvo distinct associations 

 are defined, one nearly devoid of undergrowth, the other charac- 

 terised by Prunus laurocerasus as underwood. The subalpine belt 

 has needle-leaved forest, which in distribution and physiognomy 

 recall the alps. The plates include photographs of the three main 

 forest t37-pes. W. G. Smith. 



Schenk, Die myrmecophilen Acncia- Ar ien. (Bot. Jahrb. 

 Festb. p. 449—487. 1914.) 



Die Systematik der Ameisen-Acacien ist noch nicht abgeschlos- 

 sen. Ausser den bekannten 5 Arten sind noch eine grosse Anzahl 

 anderer zu unterscheiden, die bis jetzt z.T. als A. spadicigera, 

 sphaerocephala oder Hijidsii bezeichnet worden sind. Verf. gibt 

 folgende Zusammenstellung: 



1. Spadicigerae. 



1. Acacia spadicigera Cham, et Schlecht., Mexico. 2. Acacia cu- 

 bensis n. sp., Westindien. 3. A. nicoyensis n. sp.. Costa Rica, Nicaragua. 

 Wahrscheinlich hierzu auch: 

 4. A. campecheana n. sp., Yucatan. 5. A. Rossiana n. sp., Mexico. 



2. Spicatae. 



6. A. costaricensis n. sp., Costa Rica, Nicaragua. 7. A. yucata- 

 uensis n. sp., Yucatan. 8. A. interjecta n. sp., Hort. bot. Singapore 

 und Kew. Heimat unbekannt. 9. A. CoUensii Safford, Mexico. 



3. Sphaerocephalae. 



10. A. spaerocephala Cham, et Schlecht., Mexico. 11. A. veracru- 

 sensis n. sp., Mexico. 12. A. Cookii Safford, Guatemala. 

 Wahrscheinlich hierzu auch: 



13. A. multiglandulosa n. sp., Panama. 14. A. panamensis n. sp. 

 Panama. 



