5380 
West, W., & G. S. West, Desmids from ` 
Singapore, 156-167. 
—— ——, On some Desmids of the | 
United States, 279-322. 
West Indies, On Characez collected by 
Mr. T. B. Blow in the, by H. & dJ. | 
Groves, 323-326. 
Widdringtonia, 121. 
Williams, Frederic N., A Revision of 
the Genus Arenaria, Linn., 326-437. 
Worsdell, W. C., On the Origin of 
“Transfusion-tissue” in the Leaves 
of Gymnospermous Plants, 118-122. 
——, The Comparative Anatomy of 
certain Genera of the Cycadacce, 
437-457. 
Xantbidium, Ehrenb., 298. 
angulatum, Josh., 299. 
angulatum, Lagerh., 299. 
agr cum, Kite., 298; mentioned, 
209. 
—— var. angulatum, Josh., 299. 
—— forma javanicum, Johnson, 
INDEX. 
- . . . =. 
Xanthidium antilopceeum, var. minnea- 
poliense, Wolle, 298. 
Arctiscon, Ehrenb., 319, 
armatum, Rabenh., 300. 
—— var. cervicorne, W. West & 
G. S. West * , 300. 
controversum, JV. West & G. S. 
West * , 298, 322. 
cristatum, mentioned, 299. 
fasciculatum, Ralfs, 298. 
hastiferum, W. B. Turn., 299. 
-—— var. javanicum, W. B. Turn., 
299. 
— — var. Johnsonii, W. West 4 G.. 
S. West * , 299. 
inchoatum, Nordst., mentioned, 
299. 
javanicum, var., W. B. Turn., 299. 
Johnsonii, W. West & G. S. West * , 
299, 322. 
minneapoliense, var., Wolle, 298. 
Torreyi, Wolle, 300. 
Zamia, 261. 
Fischeri, Mig., 261. 
Zygophylleæ, 210. 
END OF THE THIRTY-THIRD VOLUME. 
RINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET, 
