24 
It must not be confused with Uredo Vitis, Thtimen, which 
latter, according to M. Viala, is neither an Uredo nor even a 
fungus. The specimens distributed under that name among the 
exsiccate of Von Thiimen are identical with the original 
specimens of Ravenel in the herbarium at Philadelphia and in 
that of Curtis at Cambridge. The cause of the error ‘‘is an affec- 
tion common enough on vines planted 6n the sands of the sea 
shore and is a of physiological and accidental nature. The cells of 
the epidermis undergoing a change are isolated by desiccation, 
and, on account of their reddish color, might easily in a superfi- 
cial examination be taken for the spores of an Uredo.”’ 
Uredo Viale is therefore the first of the Uredineze known on 
a Vitis with any degree of certainty. 
Von Thiimen reports no less than 323 species of fungus para- 
sitical on Vitis vinifera alone and as many of the most destruc- 
tive of them in Europe have come from America, this note on the 
subject is a warning to agriculturists to be on the lookout for 
another enemy. 
A second new species of Uredo very closely resembling U. 
Viale was found by M. de Lagerheim in the neighborhood of 
Quito on the leaves of Czssus rhombifolia, Vahl? and is described 
provisionally under the name of Uredo Cissz. 
A. M. V. 
British Moss Flora, If. Part XTIJ. R. Braithwaite. (London, , 
Aug. 1890, pp. 105-144; t. LXI-LXVL) 
This fine work continues to improve in the illustrations, which - 
in this part are excellent. Of the species figured there are 
17 American as follows: Splachnum ampullaceum, L., S. vascu- 
losum, L., Tetraplodon bryotdes, (Zoega) Lindb. (7. mnioides, Br. 
Sch.); 7. angustatus, (Sw.) Br. Sch., Tayloria lingulata, (Dicks.) 
Lindb. (Dissodon splachnoides, Grev.); Discelium nudum, (Dicks.) 
Brid., Amblyodon dealbatus, (Dicks.) P. Beauv., Nanomitrium 
tenerum, (Bruch) Lindb., Physcomitrella patens, (Hedw.) Br. Sch., 
Physcomitrium pyriforme, (L.) Brid., Funaria attenuata, (Dicks.) 
Lindb., (Entosthodon Templetoni, Schwaegr.); Funaria calcarea, 
Wahlenb, including F. Mediterranea, Lindb., F. microstoma, 
Br. Sch., & Aygrometrica, (L.) Sibth., Oreas Mielichhoferi, 
