Pittosporaceae. 
The writer is not acquainted with this species. Hillebrand records three va- 
rieties of this species as follows: 8. var. fulvum, Oahu, Ewa to Waialua; y- var. 
from Mt. Kaala, and finally ¢ var. flocculosum, also from Mt. Kaala. 
It is exceedingly difficult properly to diagnose the Hawaiian species of Pitto- 
sporum and more so the varieties. Pittosporum terminalioides has all possible 
intermediates finally approaching P. confertiflorum. It is perhaps one of the 
many forms of the latter. The two species, together with Pittosporum Hosmeri, 
have tuberculate seeds in common, while all the other species have the seeds 
smooth and shining. P. Gayanum also belongs to this group as far as foliage is 
concerned, but the seeds are smooth and not tuberculate. 
The writer has abundant material, but even so, it is extremely difficult to sepa- 
rate them specifically, as all seem to run very much into each other. 
P. glabrum is very close to P. glomeratum and differs from it only in the 
sepals and pedicellate flowers, a characteristic which can not be very well relied 
upon, as both forms occur often on one and the same plant. The capsules of P. 
confertiflorum from the various localities have all possible shapes and forms, but 
can not be separated successfully into varieties. It will have to remain a poly- 
morphous species. 
In conclusion the writer wishes to state that he has gathered much material 
from localities from where Pittosporums had never been recorded. Some of 
them undoubtedly are new, but owing to incomplete specimens, as the wanting 
of flowers, or mature capsules, the writer thinks it advisable not to include them 
in this already voluminous book, but rather to wait for additional material and 
then make an exhaustive study of this very variable group of plants. 
Pittosporum Hosmeri Rock. 
Aawa hua kukui. 
Gat acer tong HOSMERI Rock nae ve Bot. Club. 37 (1910) 297 pl. 1, et Rept. Board 
Com, Agr. & For. (1911) 84, pl. 20. 
Branches stout, young shoot es leaves crowded at the ends of the branches, 
subsdeithonas: glabro ous above, wrinkled with a clese network, densely tomentose under 
neath with a light to dark brown wool, young leaves covered on both sides, _entire with 
ong, th 
lobes 5 mm, ov i ith priationt veins; ethene as ‘ion as the t che. phirdt oblong; 
ie x 
en youn ; A 
quadrangular 55 to 75 eg lon 4 to 55 mm wid and 4 abo ut 45 mm thick, opening ory 
w * 
It isa Oe eee tree 18 to 25 feet or more in height with stiff more or 
less ascending branches; it is most remarkable for the enormous capsules, which 
are the largest in the genus. The type specimen was collected on the lava field 
161 
