Floristik und Systematik der Phanerogamen. 527 



Maritime (9 pp). The Vegetation of the ciiffs on the North Sea 

 includes maritime and maritime-montane plants, but the majority are 

 plants of the dry grass pastures of the hüls, and plants from the Inland 

 Valleys. The origin of the sand-dune Vegetation may be divided into 

 two types: a) the dry sand ridges vvith glaucous maritime grasses, b) the 

 moist dune hollows with plants of salt mud, or dark green grasses and 

 sedges. Lists are given to show the gradations of the Vegetation from 

 loose dunes to fixed dunes. Calluna dominates one large sand dune 

 area^, but most of the fixed dunes are grass heath because of the grazing 

 of sheep and rabbits. The estuary of the Tay gave opportunity for the 

 examination of estuarine Vegetation; it is shown to be intermediate in 

 character between that of the sea-coast mud-flats, and the fresh-water 

 marshes. 



Vegetation of Lochs, Marshes, and Bogs (12 pp.). The Vegetation 

 of lowiand lochs and marshes is much richer in species than that of the 

 highland lochs and bogs. The Vegetation of lowiand loch, marsh, oak 

 wood, and grassland indicates a larger supply of plant food, than the 

 meager plant-growth of highland loch, bog, pine wood, and heather 

 moor, which occur on peat or on soils naturally poor. A summary gives 

 the Chief plant associations hitherto recorded in Scotland and 

 Northern England, with the conditions of soll which determine 

 their occurrence, and with references to the papers where lists of species 

 recorded for the different associations may be found. 



Smith (Leeds). 



Thiselton-Dyer, Sir W. T., Curtis's Botanical Magazine, 

 containing h and-colou red iigures with descrip- 

 tions, structural and historical, of new and rare 

 plants from the Royal BotanicGardens, Kew, and 

 other botanical estabüshments. Fourth Series. Vol. I. 

 No. 1. January 1905. 



Tab. 7992. — Cadalvena spectabilis Fenzl. — TropicalAfrica; 

 tab. 7993. — Cotyledou (§ Echeveria) elegans N. E. Br. n. sp. — Mexico; 

 tab. 7994. — Phyllostachys nigra Munro-China and Japan; tab. 

 7995. — Swainsona macciillochiana F. Muell. — North-west- 

 Australia; tab. 7996. — Vanilla Hiimblotii Reichb. f. Madagascar. 



Cotyledon elegans is one of the few pubescent species of the genus 

 and this character together with its one- or two-flowered peduncles 

 distinguishes it. Rose has published this under a new generic name, 

 which in Mr, Brown's opinion is unfounded. F. E. Fritsch. 



Thiselton-Dver, Sir W. T., Curtis's Botanical Magazine. 

 Vol. I. 4'^^ series. No. 2. February 1905. 



Tab. 7997. Yucca (§ Sarcoyucca) guatemalensis Baker — Central 

 America; tab. 7998. Tiilipa linifolia Regel — Turkestan; tab. 7999. 

 Angelonia {§ Crassifoliae) integerrUna — Brazil and Paraguay; 

 tab. 8000. Bulbophyllum crenulaium Rolfe n. sp. — Madagascar; tab. 

 8001 . Gnidia polystachya Berg — South Africa. 



Bulbophyllum crentilatum nov. spec, in general appearance resembles 

 the species of the B. clavatum group; its nearest ally is B. robustum 

 Rolfe, which is quite similar in habit and floral structure^ but is more 

 robust, has narrower lateral sepals and whose ovary is without the very 

 characteristic serrulate wings of the new species. F. E. Fritsch. 



