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Show B22 FEHTILITY OF CROSSED CHAP. IX. only six capsules, eac .. h conta~ning five seeds. As the number of seeds per capsule 1s h.e:e the sa1ne, .tho. fertility of the crossed and self-fert1hsed flowers 1s .g1von in rrable F as equal, or as 100 to 100. B~1t 1f the flowers which failed to produce capsules be Included, the crossed flowers yielded on an average 4 · 50 seeds, whilst the self-fertilised flowers yielded only 0 · 94 seeds, so that their relative fertility would have been as 100 to 21. I should hero state that it has been found convenient to reserve for separate discussion the cases of flowers which are usually quite sterile with their own pollen. TABLE F.-Rela#ve Fertility nf the Flowers on the Parent-plants used in my Experiments, when fertaised , with Pollen from a distinct Plant and w£th their own Pollen. Fertility .fudged of by the average Numbe?' of Seeds per Capsule. Fertil,ity of Crossed Flou·e1·s talcen as 100. lPO~<EA PURPUREA-crosseu and self-fertilised flo\vers} ytelded seeds as (about) . . . . . . . . . MIMULUS LUTEUS-:-crossed and self-fertilisr.d flowers yielJ.eu} seeds as (by weight). . . . . . . . . . . LINARIA VULGARIS- crosseu and self-fertilised flower::.} yielded seeds as . . . . . . . . • . . V ANDELLIA_ NUMMULARlFOLlA-crossed and self-fertilisecl} flowers ytelded seeds ns . . . • • . . . . GES~ERIA PENDULINA-;-rossed and self-fertilised flowers} yielded seeds as (by weight) . . . . . . . . SALVIA COCCINEA-crossed and self-fertilised flowers yielded} seeds as (about) • . • . . . . . . . . . BRASSICA OLERACEA- crossrd and ·elf-fertilised flowers} yielded seeds as . . . . . . . . . . ESCIJSCIIOLTZIA CALIFORNICA-(E.nglish stock) crossed and} self-fertilised flowers yielded ~eeds as (by weight) . . ESCIISCUOLTZIA CALIFORNIUA-(Brazilian stock grown in! Englan~) crossed and self-fertilised flowers yielded seed::; I (by wetght) as (about) . . • . • . • . • · Dtn,PHINIUM CONSOLIDA-crossed anJ self-fertilised flower") i (self-fertilised cavsules spontaneously produced, but result t J supported by other evidence) yieldeu seeJ.s as . . . · J 100 to 100 " " 79 " " H " " 67? " " 100 :' " 100 " " 25 " " 71 ,, 1;> " 5D " ,, CHAP. IX. AND SELF-FERTILISED FLOWERS. TABLE F-continued. VIS?ARIA OCULATA-crossed and self-fertilised flowers} ywlded secu::; as (by weight) . . . . . . . . 100 to 38 VISCARIA OCULATA- cro::;sed and self-fertilised flowers! (crossed capsul~s ~o.mpared on following year with ;:;pon- 58 taneously self-ferttlt::.ed capsules) yielded seeds as. . . j '' " DIA_NTIIUS CARYOPHYLLUS-crosseu and self-fertilised flower::;} vielded seeJ.s as . I , , ~J~ TROPA!:OLUM J\UNUS~cro~sed. a~d 'self-fer.tili;ed • flo~ver~} yielded seeds as . :' , ~U TROPA!:OLOM TRICOLO~Ul\;* ~ c~·oss~d .and s~lf-fertiiised} l flowers yielded seeds as . . . . . • . . . . 1 , , LIMNAN. TilES DOUGLASCI-crossed and self-fertilise::l flower::;} ! yielded seeds as (about) . . . . . . . . . . " " ll.J lUO SAROTIIAMNUS SCOPAl"tiUS-crossed and ~elf-fertilised flower"} ! yielded seeds as . • . . . . . . . . . . , , -± 1 ONONIS MINUTISSIMA-crossed and self-fertilised flowers} l yielded seeds as . II " , tj .) Cu~HEA PURPUR~A ___:_ cr~ssed ;nd . self-fe~·tili~ed. flo~ver:} ytelded seeds as . . . • . . . . . . . . · , , 11:3 PASSIFLORA GRACILIS-crossed and self-fertilised flowers} ! yielded seeds as . • . . . . . . . . . . , , 85 SPECULARIA SPECULUM-cro::.sed and self-fertilised flowers} j yielded seeds as . • . · • . . • . . . . . 1 ,: , 7 ~ LOBELIA FULGENS-crossed and self-fertilised flowers yielded} seeds as (about) . . . . . . . . . . • . " " 100 NE~OPHILA INSIGNIS-crossed anLl ·self-fertilised flowers} yielded seeds as (by weight) . . . . . . . . , , 69 BORAGO OFFJ;CINALIS-crossed and self-fertilised flowers} yielded seeds as , , 60 NOLANA PROST RAT~___:_ cr~ssed ~nd self-fe~·tili~ed. flo~ver~} yielded seeds as , , 11)\) PET.UNIA VIOLACE~ ~ cr~ssed ~nd self-fe1:tili~ed . flo~ver:} yielded seeds as (by weight) . • • • . . . . 'i , t)7 ~IC?TIANA TABACUM-crossed and self-fertili::;ed flowers} ytelded seeds as (by weight) . • . . . . . . " " CYCLAMEN PERSICUM - crossed and self-fertilised flowers} 150 yielded seeds as , , ::).8 ANAGALLIS COLLIN~___:_ cr~ssed a~d . self-fe1:tili~ed. flo~ver:} yielded seeds as ,, , 9t'l CANNA WARSCEWIC~I__:cro~sed. and seif-f~rtili~ecl flo~er~ (o~} three generations of crossed .and self-fertilised plants taken ·s.'J all together) yielded seeds as . . . . . . • . " " * Tropceolum tricolor·um and Cuphea purpurea have been introduced into this table althouo·h seedlings were not r~ised fr~m t~em ; but of the Cuphea only s~x crossed and six self-fertihsed capsules, and of the 'rropro-olum only six crosseci ::md eleven self-fertilised capsules, were compared. A larger proportion of the self-fertilised than of tlte crossed flowers of the Tropmohm"' produced fruit. y 2 |