74 Floristik, Geographie, Systematik etc. 



systematische Einteilung. (Bot. Jahrb. System. XLV. 3. 

 p. 375—410. 1911.) 



Für die Pfitzer'schen Neottiinae wird der neue Kollektivname 

 Polychondveae vorgeschlagen da Verf. die einzelnen Gruppen für 

 gleichwertig hält. Er entwirft die systematische Reihenfolge der 

 Gruppen (17 an der Zahl); aus dieser Tabelle sieht man, dass er 

 die unterirdischen Organe selbst der Säule und des Labellum be- 

 rücksichtigt. Es folgt die systematische Reihefolge der Gattungen 

 nebst Bemerkungen über ihre geographische Verbreitung. Die 

 artenreichste Gruppe ist die der Physurinae. Spezieller befasst er 

 sich mit den Gastrodiinae, bleiche laubblattlose Saprophyten in der 

 Alten-Welt (exklus. Arethusa bulbosa L. in Japan). Er entwirft da 

 einen Schlüssel zum Bestimmen der Gattungen, Sektionen und Arten. 



Matouschek (Wien). 



Schneider, E. C, The Succession of Plant Life on the Gra- 

 vel Slides in the Vicinity of Pikes Peak. (Colorado College 

 Publications, Science Series. XII. p. 289—311. 1911.) 



The Vegetation of these gravel slides, found as high as 9 — 9500 

 feet, is first considered and illustrated by figures. The soil environ- 

 ment as to temperature, moisture etc. are then given in description 

 and by means of seven carefully constructed tables. 



J. W. Harshberger. 



Shenstone, J. C, The Coast-flora of Essex. (Essex Naturalist, 

 XVI. 5/6. p. 129-132. 1910.) 



A populär account of the zones of ecological types on the Essex 

 coast. On mud, Zostera marina occurs on wet tidal flats, followed 

 landwards by a zone of Salicovnia enropaea; land covered only by 

 the highest tides bears Statice limonium, Suaeda maritima, Inula 

 crithmoides, Spartina stricta, etc. Sea-walls erected to protect the 

 marshes from high tides favour Lepidium spp., Frankenia laevis, 

 etc. On sandy coasts the usual zones are present including most of 

 the species of eastern England. Several Umbelliferae , etc. from 

 ditches with water are recorded. W. G. Smith. 



Smith, W. G., The present position of Botanical Survey in 

 Britain. (Trans. Proc. Bot. Soc. Edinburgh. XXIV. II. p. 53—59. 1910.) 



The ideal botanical survey of a district or country should take 

 account of all aspects, floristic, distributional and ecological. While 

 in each of these directions progress has been made in Britain, recent 

 years have been productive of a series of memoirs in which the 

 Vegetation of considerable areas have been examined, the larger 

 units of Vegetation recorded on maps, and issued along with a 

 descriptive memoir. These deal with plant communities in relation 

 to environment. This work is distinguished as "primary survey" and 

 consists in a series of reconnaissances over fairly large areas; such 

 surveys have given good results and are regarded as an essential 

 preliminary to more intensive studies. It is now known that the 

 plant-covering of Britain consists of a series of plant communities 

 which recur in places widely apart and under comparable ecological 

 conditions. Types of Vegetation have also been established which 

 previously were scarcely recorded in existing literature, e. g. Ashwoods 

 on limestone, two types of oakwood, and several types of Moorland. 



