Pittosporaceae. 
of Puuwaawaa, in North Kona, on the slopes of Mt. Hualalai, Hawaii, on June ri, 
1909. Since that time the writer visited again this district and collected addi- 
tional material; most of the trees were then in flower. The writer made also 
extensive exploration of the forest surrounding Mauna Loa, especially the drier 
districts in South Kona, which resemble Puuwaawaa greatly as far as vegetation 
is concerned. In that latter locality the writer found this species very common, 
and it is certainly astounding that it has been kept from our knowledge for so 
long. The plants from this latter locality, however, differ somewhat from those 
from Puuwaawaa, in size of capsules, which are smaller, and in the size of 
leaves, which are much larger. The tree itself is much smaller and more nearly 
a shrub, while the trees at Puuwaawaa have often a diameter of a foot or so. 
Near Kilauea Voleano at an elevation of 4000 feet is a small Kipuka or piece 
of land of great age which is surrounded by rough (aa) lava flows. The area 
of this Kipuka is 56 acres; on it are to be found not less than 42 species of trees. 
The vegetation is such that one would immediately look for Pittosporum, but in 
vain. The writer persisted, however, to locate a Pittosporum representative in 
the vicinity, and after a search of several days found a small triangular lot of 
about an acre in extent, which must have been once upon a time a part of the 
above Kipuka; it was surrounded by enormously thick aa flows, which were cov- 
ered with stunted Ohia lehua growth, whilst in that small pocket of land grew 
Pittosporum Hosmeri var. longifolia, together with Pelea and Xanthoxylum. 
The trees from Kilauea are identical with those from Kapua, 8. Kona, and 
also with specimens from the upper slopes of Hualalai, from the forests above 
Huehue at an elevation of 5000 feet, while the typical Pittosporum H osmert 18 
peculiar to Puuwaawaa. 
The variety is here described as follows: 
Var. longifolia var. nov. 
(Plates 58, 59, 60.) 
Leaves lanceolate-oblong to obovate oblong rounded or acuminate at the apex, 15 to 
40 em long, 5 to 9 em wide, on petioles of 2 to 5 ‘em, glabrous above, densely covered under- 
neath with an ochraceous to rufous tomentum; flowers as in the species; capsules smaller 
subsessile, 10 on a common pe m in diameter, ¢ 
sules globose, quadrangular to oblong, 2-3-4 valved, the valves woody, 4 to 5 em long or 
5 em each g 
mature. 
The tree is quite common at Kapua, 8. Kona, Hawaii, on the lava flows, but 
does not reach such a height and size as at Puuwaawaa. The trees of the latter 
locality are loaded with fruit during June and July, while those of Kapua bear 
mature fruit during the month of February. However, the fruiting season of 
these, like nearly all the other Hawaiian trees, can not be relied upon. Occurs 
also at Kilauea, and Hualalai, Hawaii. 
This species with its variety resembles somewhat P. terminalioides of the same 
regions, but has only the roughened seeds in common with it. 
The fruits of P. Hosmeri and variety are a source of food for the native crow, 
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