212 SIR JOHN LUBBOCK ON 
down the branches from whence the leaves have fallen are very 
small or inconspicuous. 
Stipules small, subulate, spiny. 
Porlieria hygrometrica, Ruiz et Pav.—Leaves opposite and di- 
stichous, not decussate, abruptly pinnate, petiolate, stipulate, silky 
or pubescent all over, except on the upper face of the leaflets ; 
sensitive and persistent; leaflets linear-oblong, alternate, closing 
up and imbricate face to face when irritated or when circum- 
stances are unfavourable. Petiole short, subterete, with a slender 
groove on the upper side, scarcely dilated at the base, recurv- 
ing near the base when irritated. 
Stipules in rather widely separated pairs between every two 
leaves, small, subulate, pale brown, hairy, spiny, erect, persistent. 
Terminal bud covered by the two erect and connivent pairs 
of stipules belonging to each succeeding pair of leaves. The 
older pair of leaves push out from between the stipules, and 
gradually attain a considerable size before their leaflets unfold; 
they are densely hairy at this stage, and receive considerable 
protection thereby. Axillary buds developing tardily, and pro- 
tected by the stipules of the leaves to which they belong, and 
later on by pale brown, hairy, membranous scales which appear 
to be stipules belonging to imperfect, and some to perfect, leaves 
on the axillary axis. 
GERANIACE. 
In my previous papers I described the stipules (Journ. Linn. 
Noc. (Bot.) xxx. p. 475) of certain species of Ozalis. Others 
are exstipulate. In O. crenulata, for instance, the leaflets are 
narrowed to the base and sessile upon a short sheath, and downy 
on the under surface. 
Sheath triangular, open, semiamplexicaul, ciliate, erect, and 
adpressed to the axis, downy. 
Terminal bud partly or wholly protected (according t0 its 
stage of growth) by the erect sheaths of the two most recently 
developed leaves. ‘The leaflets are conduplicate and erect in bud, 
thus exposing the downy under surface only till they expand. 
Axillary buds are not often elongated, but they are 1m al 
cases completely covered by the adpressed sheaths of the leaves 
till they attain some size. Sometimes one or two of the primary 
leaves are reduced to linear or subulate organs, and when con 
fined to the base of the axillary shoots bear à superficial 
resemblance to stipules. 
