(117

Vandellia numm: seed sent by J. Scott, after 2 or 3 generations raised in Hot House. —

When plants covered by net the perfect flowers sometimes spontaneously produce perfect flowers pods. —

Four perfect flowers were crossed & produced seed as below

(These flowers difficult to cross, & I did not feel sure that I had succeeded; but result shows, I think, that I did.)

132 [+] 111 [+] 129 [+] 96 [=] 468 average 117.5 (white Thread)

Six perfect flowers were artificially fert with own pollen & produced,

47 [+] 31 [+] 19 [+] 18 [+] 26 [+] 34 [=] 175 average 29.16 (Black thread)

(These seeds appeared very fine though so few in number.)

The minute Imperfect flowers set by scores & seed were counted in 9 pods pod taken by chance, viz

70 [+] 72 [+] 78 [+] 62 [+] 62 [+] 67 [+] 41 [+] 53 [+] 63 [=] 568 [÷] 9 [=] 63.11

(red thread)

We thus see that worst crossed produced more seed than best of Imperfect flowers; & the average of imperfect flower far above that of Perfect flowers self-fert.— The pollen of Imperfect flowers must be adapted for self-fert. — These seeds were sown in tripartite Pots. Ap. 19— 1871 & put in Hot-bed. —

(118

Vandellia.— May 22d Plants about 1 1/2 inch high

In Pot II alone the seed from perfect-flowers crossed are rather taller; but in other pots no marked difference.—

[table not transcribed] ie rather less than 1/4 of inch between tallest on cross & self — consideringhow long plant are this is [illeg]

July 1 June 20th 1871 The plants from seed from perfect flowers crossed by other flowers, flowered rather later than the other 2 lots —

(July 18th 1871. Plants now in full flower, & growth apparently almost completed & now measured.)

118

[calculations not transcribed]