382 BOTANICAL GAZETTE [JUNE 
some important general tendencies can be made out from the notes, 
and therefore the following table is inserted: 
Name Color of buds Ga 
Magnolia acummaitay .. fe. osc. use ee yellow-gray or olive late 
Ailanthus eli having Chg eR ea. bias yellow-gray late 
Boer Negu nde n.6 naGkbs.- ecards hire a: pale, whitish medium 
Ju _acsant senha hi pao ta ats be eens se pale, grayish very late 
Quereus alla. o 53.16 Hees oad wae oes gray very late 
Salix dite Lc c inte a oraitas. Stara tak ops yellow early 
Pops Prandidentatd. 455 esses: pale very early 
Ringe Wulearis. howl asis cows eso pale, yellowish early 
Betula Bee: ee Or see ee olive late 
Fagus SnGAiCaUe << os dress se cd euxs olive medium 
Paes “dilatata ne Cre eae ee yellow-brown medium 
Salix) COrdatan: 4 tactea erwiss ste itosnattcaaesivs, Ae olive or purple ly 
Sie TOCA GATIO 6, 5 4.50 Cesena ar ah te een brown medium 
Sank SeriGed ve coe okie sle, a2 worsiawesae eo). brown-purple early 
MNES. POUR. se uals oa gs BOF eed wc brown-purple early 
Acer obec eg wala PRR ata hee bark olive-brown medium 
its ROIOONA ns oie be Se ee red medium 
Aesculus Teecectaaet a Us ach otra ah dark brown » early 
Aber pactariate 6 25 oo ns 8 cae Ys red very early 
Prunus persica .......-00,.-00ssese> purple very early 
Other species ee Sohgan and Pyrus.. red, brown, or gray early 
CYRISORUE COCKER. 0 ooo ce occ deus a red o house olive medium 
Dilnriis: Hikwase: tcc geseec cure oe heres dark he early 
NENTS Sen Dita. ch cca c tat ele ees black very early 
Stee WRN iy vinu ds 64 ex ba eadaes Hae black very early 
It is not to be expected that the time of opening or even the time 
of swelling will in all cases be proportional to the color of the buds 
alone. The protoplasmic characteristics of the particular species 
or genus undoubtedly play a very important part; but bearing 
this in mind the following suggestions appear in the above table. 
Nearly all of the light-colored buds are also late to swell and open. 
None of the dark red or especially the black buds open late. On 
the other hand, a few light buds, as for example those of Syringa, 
Populus, and Salix alba, open quite early. This may be due to 
more easily aroused protoplasm than is present in most buds. Pos- 
sibly if these buds were black they would open still earlier and 
therefore suffer injury from the frost; thus the present lighter color 
may serve as a means of protection. 
During the spring of 1901, about March 1, some experiments 
were started to determine if possible whether other buds might 
be influenced by color in a way similar to the peach buds white- 
