clxxviii PEOCEEDINGS OF THE KOYAL HOKTICULTURAL SOCIETY. 
also normal. Eacli was provided with a short defiexed petiole. Con- 
necting the base of one petiole to the other was a collar or thin almost 
membranous ring encircling the base of the epicotyl or plumule and 
prolonged on one side into a tongue-Hke process (b) similar to that which 
occurs among the Cucurbitacese,* but differing from it in protruding on 
the opposite side of the embryo plant, opposite to or away from the base 
of the cotyledons, not directed towards them. 
The hypocotyl, or, as it was originally called, the tigellum or cauhcle, 
was not obvious externally, but no doubt this sheath-like process emerges 
from the axis at the junction between the radicle and the caulicle. 
Traces of the sheath may be seen in germinating Peas, but I have 
never seen it so marked as in the present instance. Two plumules (epi- 
EiG. 184.— Seedling of Leucadendron argenteum. {Gardeners^ Chronicle.) 
A A, Cotyledons sheathing at the base ; B B, Transverse Sections ; c, Plumule ; 
D, Caulicle ; E, Eadicle. 
cotyls) arise from within this sheath (c, c) ; but whether the two are really 
distinct in their origin, or arise from the subdivision of one, I am not 
able to say. At the base of each is a small bud (d). 
Scientific Committee, December 4, 1900. 
C. E. Shea, Esq., in the Chair, and four members present. 
Seed-vessels. — Her Grace the Duchess of Cleveland sent fruits of the 
following plants: — Arauja alhens, fruit consisting of two thick oblong 
* Flahault, Bull. Soc. Bot., France, xxiv., 1877, p. 201 ; Darwin, Movements of 
Plants, p. 102; Lubbock, A Contribution to our Knowledge of Seedlings (1896), p. 101. 
