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REVIEWS. 
e. appendiculatum. — (T. collinum, Ledb., T. appendiculatum, C. 
A. M., T. squarrosum, Steph., T. Jacquinianum, Koch.) 
£. puberulum. 
rj. glandulosum, Koch.— (T. pubescens , Schl.) 
Thalictrum Kemense of Fries is held specifically distinct. 
Viola. We quite agree with Dr. Kegel in his treatment of 
V. canina , L. The forms of this species include, amongst others 
unfamiliar to English readers, V. sylvestris , Lam., V. sylvatica, Fries, 
V. Ruppii , All., V. Riviniana, Kchb., V. flavicornis, Sm., V. arenaria , 
DC., V. Muhlenhergiana, Ging., V. Allionii, Pio, and their subor¬ 
dinates. V. montana , L. is maintained as specifically distinct. From 
the diagnosis of the species by Linnaeus, it might be supposed he had 
in view a form of V. canina with longer leaves, but his reference to a 
figure of Morison’s convinces Kegel this was not entirely the case. 
V. stagnina , Kit. {V. lactea et stagnina, Kchb.) is the var. y of V. 
montana . 
Alsineae. Dr. Kegel’s ‘ conspectus generum ’ of this section of 
Caryophylleae, offers some features at variance with the distribution 
of genera recently proposed by Messrs. Eentham and Hooker in 
their ‘ Genera Plantarum.’ Ilonhenya, Adenonema, Moehringia , 
Merclda , Malachium , and KrascheninniJcowia are maintained. Ruf- 
fonia is merged in Adenonema , which latter Messrs. E. and H. sink in 
Stellaria , though Kegel separates it in his synopsis— Adenonema with 
the valves of the capsule equalling the styles in number, while in 
Stellaria they are twice as many. Dimorphic flowers do not con¬ 
stitute an essential character of Krascheninnikowia , which is here 
described as differing from Stellaria in its glocliidiate seeds. 
Arenaria verna and its numerous varieties proffer an interesting 
study which must not detain us. Its var. Gerardi of the Lizard hills 
occurs in the Altai and mountains of Baikal. Arenaria rubella is 
regarded as a subvariety (lusus) of the same plant. This may pro¬ 
bably be correct. It has but little claim to specific distinction. 
Cerastium viscosum, L. ( C.glomeratum , Thuill), C. semidecandnm , 
L. and C. vulgatum, L. (C. triviale , Lk.) are maintained. 
We shall look for further issues of Dr. Kegel’s ‘ Aufzahlung’ 
with some interest. 
The ‘ Flora Ussuriensis’ is based upon specimens collected by 
Maack in the region of the Ussuri, a tributary of the Amur. No 
new genera, but several new species are described. The descriptions 
are in Latin, the extended observations in Kuss. A Table is 
appended showing the number of known species on the (1) Ussuri, 
(2) Amur, (3) in N. E. Asia, and (4) in Japan; also the number 
of Ussuri species common to the Amur, N. E. Asia, Japan, and 
North America. Separate lists are given of the species of the 
Ussuri not enumerated in ‘Flora Amurensis,’ the species common to 
Japan, to N. E. Siberia and Kamtschatka and to N. America. 
