218 
From the results of the experiments the following conclusions seem 
deducible. 
Frrst.— The germination percentage in the composite is low as compared with that 
of the other families examined. 
This statement has its apparent exceptions in Arctium Lappa and 
Cnicus lanceolatus, which show high percentages. That these are excep- 
tional, however, will be shown later. From the experimental cards the 
following table is drawn: 
% Per cent. 
FN flO a 0 Wel WE: 0) OF: nC ee eres nce PBR GI nb eatin oie paceeeoece er 93.3 
Chieus Janceolatussn 14h ee ee Oe ee eee 89.5 
Bidens:bipinn atari. .ce concen ees cee ee ee eee Bi(ea) 
Bidens * ErOn COSA. Sears ao Sie eh. eee Os, FR OL 
hactwear Canad Gnsig.: so7.scko ee ne VE a ee 30.5 
hactuea: Seariolanccunck.. eats Ae ele ahs ae ee 25.0 
Soldacor CannGensisrscisds cise se oe ete yo eee 12.5 
AICHE MISS COMI iis cece wives eas Seat ele ee ee 12.5 
CHichsr MUtiCUsy.a arr Aone: cule bs GA Oe oe 10.0 
Aster Shortii.(ODG.Vear) scl acs cue lesdh c,h, Ser ee ee 
AN DPOSIAE (QNERVEAT) isc seirieacchee aciee mie ae Race eon eens 
Viernonig Lasiculata, (GHG: VGA \e aan oc ates itis vitae mises 
Germination percentages shown by forms in other families are as 
follows: 
Solanum nigrum, 187 seedlings from three berries. 
Per cent. 
Da Wray LAs ies iec., acs Soessarsisepa ee een ese ea a ae ee 100.0 
ADutilon cA ViCeNi ae 35h Gru cece ane atten Visiedt eer ee 89.0 
Scrophnlaria. WMOGOSH .\. 2. relearn oe ee te ie eae) oe 70.0 
Flantazo. JRU Pei <sorks ve cece ee otra e nn eee ee eee 62.5 
TUX. “A COLOBENG So srt apr ereicet tke! toot, Nero rence ees 56.7 
Mallya: TOtmnGTfolia (5 seo 260 jort- ays ard wee sass oe ae ee eee ee OU 
Gapsella (Bursa paStonis: te es 2. sono Vnele alae cease era eens 45.0 
Wepetn. Cateial Piacy sec leycit. orn wie 25, tata wince Mat ae Oe 
CHENOP OGUUIIN, > SUA ee ae hee os are nl see ee ee ee ee 
‘ These are taken from over 200 experimental cards and are fairly typical of the series, 
Experjm nts with ordinary germinating apparatus confirmed these results. 
