Floristik, Geographie, Systematik etc. 
527 
Fortsetzung der früheren Arbeiten des Verf. sind. Jaccard glaubt 
seine „lois de distribution florale”, wie er sie für die alpine Zone 
aufgestellt hat, nunmehr auch auf die subalpinen Wiesen ausdeh¬ 
nen zu dürfen. H. Brockmann-Jerosch (Zürich). 
Ridley, H. N., Materials for a Flora ofthe Malyan Penin¬ 
sula. (Printed at the Methodist Publishing House, Singapore, 
1907. Part. I. p. 1—233. Part. II. p. 1—235. Part. III. p. 1 —197.) 
This work contains an account of the Monocotyledons of the 
Malay Peninsula, Part I containing Hydrocharideae, Orchideae and 
Apostasiaceae, Part II. Zingiberaceae to Pavidaneae, and Part III. 
Araceae to Gramineae. Each Part is separately paged, but none of 
them contain any Index, which greatly curtails the usefulness of 
the work. Nor is there a word of preface, and as the Monocotyle¬ 
dons are finished we might have looked for some explanation of 
the relationship of the work to the one commenced by Sir George 
King in 1883, under precisely the same title, and which is now 
completed to the end of Pedalineae. The area covered by the work 
is apparently the Malayan Peninsula, from the northern boundary 
of Ligor, with Singapore, Penang. the Langkawi Islands, 
and a few other small islands adjacent, and within this area there 
appears to be a very considerable endemic element, especially among 
the Orchids, which are frequently rather local. Of the Orchideae, 
including Apostasieae (which, however, Mr. Ridley treats as a distinct 
Order), 546 species are enumerated, arranged in 90 genera, and of 
these 280 species, or a proportion of just over half are endemic. 
Two new genera are established, Pooephyllum, Ridl., based on 
Agrostophyllum paucißorum , Hook. f. and Eria rninutißora, Ridl., 
and Ascotania, Ridl., based on Jainia penangiana, Hook. f. The 
Classification is that of Bentham & Hooker’s Genera Plantarum, 
with a few modifications. Dendrobiam is the largest genus, having 
73 species, Bulbophyllum (including Cirrhopetalum) following closely, 
with 68, while no fewer than 28 genera are monotypic. The work 
forms an important contribution to our knowledge of the Monocoty¬ 
ledons of the Malayan region. R. A. Rolfe. 
Rikli, M., Obs ervations phytog£ographiques sur le flore 
du Lägern. (Arch. Sc. phys. et nat. Oct. et Nov. 1907. p. 85—86.) 
Die Lägern, ein isolierter Juraberg in Ct. Zürich, hat eine 
Anzahl Arten, die dem übrigen Teil des Ct. Zürich fehlen. Verf. 
teilt diese in westl. und ostl. Arten ein. Die erstem setzen sich aus 
Jura- und Alpenpflanzen zusammen. Eine Anzahl subalpiner Arten 
sind nach Rikli vom Jura und nicht von den Alpen abzuleiten. 
Nur wenige Arten lässt der Verf. als „Glacial-relicte” gelten. 
H. Brockmann—Jerosch (Zürich). 
Roeehetti, B., II „Corynocarpus laevigata Forsk.” e le sue affi¬ 
nita naturali. (Boll. R. Orto bot. e Giardino col. Palermo. Vol. 
VI. p. 137-141. 1907.) 
L’aspect et la structure anatomique des stipules font penser ä 
l’auteur que la place systematique du Corynocarpus laevigata Forsk., 
encore tres controversee, est ä cötd des Saxifragacdes auxquelles le 
