This case is remarkable because the
cotyledons of G. cinereum, Endressii, Ibericum, Richardsoni, and
subcaulescens were observed during some weeks in the winter, and they did
not sink, whilst those of G. Ibericum rose 27o at night.
Apium petroselinum (Umbelliferae).--A seedling had its cotyledons (Nov.
22nd) almost fully expanded during the day; by 8.30 P.M. they had risen
considerably, and at 10.30 P.M. were almost closed, their tips being only
8/100 of an inch apart. On the following morning (23rd) the tips were
58/100 of an inch apart,
* This plant, from Dammara Land in S. Africa, is remarkable from being the
one known member of the Family which is not a climber; it has been
described in 'Transact. Linn. Soc.,' xxvii. p. 30.
[page 305]
or more than seven times as much. On the next night the cotyledons occupied
nearly the same position as before. On the morning of the 24th they stood
horizontally, and at night were 60o above the horizon; and so it was on the
night of the 25th. But four days afterwards (on the 29th), when the
seedlings were a week old, the cotyledons had ceased to rise at night to
any plain degree.
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