246 BOTANICAL GAZETTE, [Sept., 
Z arranged our species in a series of natural groups, which are 
itil Risin defined by see: iia a combination of » ase There are 
ne. or two changes in nomenc ; but the only e ones are in the 
ond group, whine Vz oa Ck the much neg name of V. delphini- 
folia and the Linnean name of V. palmata asserts its right of priority over V. 
cucullata of Aiton. If we did not fall back upon this name we should have to 
take up V. obliqua of Hill, which is much earlier than V. cucullata, and is clearly 
of that ree as Hill’s figure shows. 
ee crave the opinion of the club as to whether our Pansy-Violet, V. tricolor, 
- arvensis, is indigenous to this country. In deference to those who have 
more knowledge of the matter than I have, this is here included among the 
wild species, yet with misgiving—Asa Gray. 
Orange-leaf seab.* — During the past two seasons the Department of Ag- 
riculture has been receiving orange leaves that were diseased in some way. Mr. 
Charles W. Campbell, of Ocala, Florida, writes that the disease appeared first 
last summer and is rapidly increasing, especially attacking young and vigorous 
. It is very one to the e gro owth of the trees and ruinous to young 
seems re be no iotetios upon the subject, and there is a svobabitite 
that the disease is new, at least it is of very recent appearance in Florida, The 
entomologists affirm that there is no evidence of its being caused by insects. 
The first appearance is that of small, light-colored, wart-like excrescences 
upon the leaf surfaces and young shoots. These — often become con- 
fluent, and finally destroy the vitality of the leaf. The top of the older waris 
is dark brown or nearly black, due to the ereyrave of be dese eg oe grant, 
made up of a multitude of irregularly devel 
one-celled conidia. Whether this particular fongos j is the caase e of the disease 
it accom wr a I can not at present say. 
€ specimens recently received Mr. J. B. Ellis discovered a species 
of Pasattiins which he believes to be F. sarcochroum Desm., and expresses the 
opinion that the warts are caused by the mycelium of this aoa After care- 
ful examination, however, I am inclined to think that the disease is caused by 
the first fungus referred to a 
From letters received fo’ De Land, Florida, we learn that (1) trees af- 
fected last season were the first attacked this spring; (2) sour trees alone vo 
throughout the whole tree; (6) the disease does not spread in the grove, but 
appears at several points simultaneously, 
It is recommended that the following fungicides be tried: (1) a solution 
of potassium bisulphide; (2) a grisont; (3) strong soap suds containing 
_. and carbolic acid. Of course all these solutions should be applied in 
orm of fine spray.—F, ‘iteiued Scrrpyer. 
me ieee of a paper read before the Botanical Club of the A. A. A. 8,, Buffalo meet 
tPrepared by boiling three unds each of th Iph dali e in six gall 
———— until reduced to tw a When ba mutt ripoiged bd oo . f the Clear tia uor an ttle 
for use this liquid shonid be much auntedc with coh (1 to 12) 
