DorRSEY: VARIATION IN FLORAL STRUCTURES OF ViITIS 45 
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3°) 
3 = Class frequency for no. of stamens Sy 
Bu s g per flower Ses 
Variety or species 5 S 5 nae baal 3 
oe 
2 wl ad 4 ae 
UY 
Petite Sirah (vin.) *... |, Se ee le) a 2 268 
ae “é shel aint su sth ‘ oe 2 292 
ae F ce he a a a ee oe 3 167 
oe oe oe t eRe e “eé ee I 160 
ae e Be ew ieee ae oe “e 2 280 
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te “ ‘i Wie cs “ se I 190 
“ee “ec hai es Senate a “cc “ee 2 4 224 
cei oe PEP een ne ce ae 3 5 195 
“ec ry é + eects “e se I 9 128 
Seibel No. 2..:......... Ho Sites ar 170 
eo es ag ede 156 
SDR sin wba a fe * 3 179 
ee ene ee ee a 165 
V. Labrusca(small cluster)} W | og | x a 24 
Cross (Lab. & PRS 5 Cc ? I 35 372 
“cs fe a ase “ss ‘cc 2 38 540 
“sé ce hcon ee ‘e “ee 3 6 183 
Cross (Lab. X vulp.)....| C 1H QI x 13 494 
sé A ad Oia es “ec 4“ 2 9 645 
oe tae RO eet crit ae ae 3 5 284 
ae Coe bag Shans Rate oe oe 4 5 340 
“ 3 ie ea gs a “c “ 5 I 14 260 
sé Le ae, “a “6 6 13 380 
Cross (Lab. X bic. x vin.) ae aie OE a cr 155 
cza “é 3 “cc ae 2 if 1s 84 
Cross (Lab. X vin.) ..... eae 4 228 
e ee nig ete “ee “e 3 I 379 
Cross (Lab. X vin. X oe ale ne es 63 338 
“ee “a “ec “ II5 552 
aie iets tengs eat oe a SNE Hees Goa Ves SO eNhe REE COIS Ie 
SMR Ge ne I15| 6 (2,630 21,385)/5,829) 783) 82 30,721 
* Counted in 1909. 
T Counted in roro. 
and four above it. The highest number of flowers found in any 
cluster was 738, which occurred in a wild vine of V. vulpina. The 
staminate cluster usually has more flowers than either form of the 
perfect. 
It will be seen from an inspection of TABLE I that the variation 
