130 R. H. CAMBAGE. 
ACACIA SEEDLINGS, Part VIII. 
By R. H. CAMBAGE, F.L.S. 
[With Plates II- V and Text Figure. ] 
{Read before the Royal Society of N.S. Wales, September 6, 1922. | 
SYNOPSIS: 
VITALITY OF SEEDS IN SEA-WATER. 

SeQueNCE IN THE DEVELOPMENT OF LEAVEs. 
NuMBER OF PINN&E ON ONE LEAF. 
Crosinc Up or PHYLLODES at NIGHT. 
FLOWERING SEEDLINGS. 
DESCRIPTION OF SEEDLINGS. 
Vitality of Seeds in Sea-Water. 
A seed of Acacia melanoxylon from Jenolan Caves ger- 
minated when placed in boiling water and planted after 
having been immersed in sea-water for five years. 
Sequence in the Development of Leaves. 
In Part VII, (p. 106), it was mentioned that 99 species 
of Acacia had been found to commence with one simply 
pinnate leaf, while 14 had an opposite pair. The following 
five may be added to the former list, which brings the total 
to 104 :—A. acinacea Lindl., A. Baueri Benth. (from Went- 
worth Falls), A. hastulata Sm., A. rhodoxylon Maiden, A. 
sparsiflora Maiden. 
To the fourteen species commonly having an opposite 
pair of simply pinnate leaves the following three from 
Western Australia may be added :—A. extensa Lindl., A, 
scalpelliformis Meissn., A. urophylla Benth., making the 
total seventeen. 
Number of Pinne on One Leaf. 
= In addition to those phyllodineous Acacias already 
recorded as having more than one pair of pinne on one 

