Pittosporaceae. 
or white, tube 10 to 12 mm or less, lobes about 6 mm, stamens nearly as long as the tube, 
ees ie! Ag nape. pistil short, ovary = By aia tomentose; capsule globose- 
piety bila : flattened, i thick woody valve mm, wrinkled or rough or some- 
times smo eeds purple mpressed oo atl ee packed in two rows in each 
ae rere “Gall, Sinatery pimencule)e: rugos 
A tree 20 feet in height with ee stout, ascending branches. It is a some- 
what variable species; the inflorescence is not always terminal, but also axillary 
and even cauline in specimens from Haleakala, Maui. The writer collected 
specimens of this species from the type locality southern slopes of Haleakala, 
Maui, where the tree is not at all common. It also grows near Kaupo at an ele- 
vation of about 5000 feet. The leaves in the writer’s specimen are much larger 
than those figured by Asa Gray. 
Hillebrand’s var. 7. from Kau and Kona agrees well with the writer’s material 
from Lanai. The genus Pittosporum is exceedingly well represented on Lanai, 
the species confertiflorum evidently being very variable, as there are as many dif- 
ferent forms as there are Pittosporum trees and one would be naming individual 
trees. It is indeed puzzling, the question of specific distinction in the Hawaiian 
Pittosporums, thanks to the insects on which the plants depend for pollination. 
Hillebrand’s typical var. B. occurs in nearly all the valleys of Lanai, as Kai- 
holena, Mahana, Koele, and also on the ridges. It differs from the species in its 
smaller leaves and lanceolate sepals, and is a small tree about 18 feet in height. 
In some of the Lanai specimens the capsules are deeply wrinkled, and quad- 
rangular, with perfectly flat valves 3 em. each way; one specimen, No. 8 
has a long bracteate peduncle of 4 em., with large pedicellate flowers. 
172 
d 
