244 BOTANICAL GAZETTE. [| September, 
On the other hand, are you sure that Mr. Bentham, if en ge ee 
the species name above, would maintain them all with the 
species? Possibly, yes; but ycucan assert nothing, and. therefore. bg 
can not attribute such names as Triodia Texana to hi 
As s matters now are we must quote Triodia Texana Vasey in “The 
Grasses,” etc., etc. The botanist who seeks this ri in your book pS 
the indication “ Tricuspis Terana Thurb.,” and x Oss W 
to find more information about that species. "Phe author of Tvigdia 
mutica is F, L. Scrib. in Bull. Torr. Bot. Club X, p. 30. He is also the 
author of Hilaria rigida (in poe Torr. — Club Xp . 86), not Bentham, 
who, in Notes on Gram., p. 62, mentions on ly H. ccighretian H. Jamesii, 
I. is tr han 
the reasons for changing it, but the dromstion of any name of author 
Concerning nomenclature. 
I was much surprised when I read in the BoranicaL GAZETTE (June, 
1888, p. 161): “Shall the law of priority apply ey to the combined 
name when a species is transfe stony to another genus. 
This Ae has been clearly considered and settled in the 57th ata 
of of Nomenclature, recommended by the Botanical Congress 
held at Paris in August, 1867! : 
“When a “sg is moved into another genus the specific name is 
intained, unless there arises one of the obstacles mentione ae 
Pepi 62 nate 6a” (Ii the name exists elready in the genus or cout 
Oo 
is rule is in conformity w ith the general principle not to change 
hames without absolute n necessity. It has also an aiivait tage, which is to 
help r remembering a species formerly in anottier genus 
. We follow that rule in several cases more or less analogous to our od 
scientific nomenclature. When i i ve been transfert 
city is changed, those of the streets are kept; John Brown discov 
that his real family name is Smith would be John Smith. «tee 
Ow me to recall that our rules were first submitted ra a commi 
of eminent botanists of five different. patiGnsitine afterward Seoc 
aa — sitt eon by more th nd finally @ he 
iversal consent, __Bince that —st I —— heard any pete a 
fixity, of spec ois na nam i 
sary I would consider ¢ r them as 
, Switzer Apu. De CANDOLLE. 
Polygamous flowers in the watermelon. 
One of the age ss a 
or Pee z thie given for Cucurbitaceze is “ flow 
'Translated in English. Reeves & Co., London. 1868. 
ee ee ee 
one te 
4 ie Se A 
ing some crosses to-day on the Volga usarmel : 
