358 THE ORCHID REVIEW. [DECEMBER, IQII- 
REVIEW OF BOOK. 
Die Orchidaceen von Deutsch-Neu-Guinea. Von Dr. Rud. Schlechter. Berlin- 
Wilmersdorf: Selbstverlag des Herausgebers, Weimarischstr. 3}. 
The first two parts of a work on the Orchids of German New Guinea, 
by Dr. R. Schlechter, have just reached us, and form a very important con- 
tribution to the Orchid Flora of this large and remarkable island. During 
his recent trip to New Guinea special attention was paid by Dr. Schlechter 
to the Orchids, of which a very large collection was made. Analytical 
drawings of a single flower were also made from the living plants. The 
result was an enormous accession of new species, and an idea of how great 
was the proportion of novelties may be inferred from the fact that of 222 
species dealt with in the two parts before us, no fewer than 159 are new, a 
proportion of over two-thirds. The arrangement adopted is that of the late 
Prof. E. Pfitzer, and the two parts issued, containing 160 pages, take us 
as far as the genus Oberonia (which is unfinished). Up to this point forty 
genera are dealt with, the greater part belonging to what, under the 
Benthamian arrangement, would be referred to Ophrydeze and Neottiez, 
these being followed by the Collabium, Coelogyne and Microstylis groups. 
Microstylis is the largest genus dealt with, comprising 48 species, of which 
39 are new. The introductory part is deferred for the present. 
Glancing through the parts before us, we note that the Apostasiez are 
excluded, the author regarding them as comprising a distinct Natural Order, 
and thus the work commences with Paphiopedilum, the single species found 
in German New Guinea being an ally of P. javanicum, which is described 
as new, under the name of P. violascens. _It was found in three localities, 
at-I,000 to 1,300 metres elevation, flowering in May and June. Habenaria 
includes 22 species, twelve of which are new, while Platanthera and 
Disperis each contain a single species. 
Passing to the genera included by Bentham under Neottieze, we find 27 
here included, with an aggregate of 107 species, of which 79 are new. Here 
the remarkable genus Corysanthes heads the list, with thirteen species, all 
of which are new, Zeuxine coming next with eleven, eight being new. 
Vanilla and the allied saphrophytic genus, Galeola, are each represented by 
three species, all being new. The Collabium group is represented by 
Chrysoglossum, Collabium, Mischobulbum (a new genus), and Tainia, the 
former with two species, the rest with one. Then follow Cceelogyne with 
five species, two being new, Dendrochilum with one, and Pholidota with 
four species, only one of which was previously known. Microstylis we have 
already mentioned, and Oberonia, being unfinished, may be left for the 
present. 
The succeeding parts will contain more of the cultivated genera, and it 
