232 
SPECIMENS examined: Lanai, 18—, IT. 
Hillehrand (GH), (s. If. £1. fr.); Lanai, rec’d 
12/72, IF. Hillehrand (K), (st. If. b. fl. fr.); 
Lanai, July 1870, [IF. Hillehrand^ Ex Museo 
botanico Berolinensi, College of Hawaii 
Herbarium 17,060 [i. e., J. F. Rock added his 
number 17,060 which is not a Hillehrand 
number]. Two original tickets are in Hille- 
brand’s writing, and the printed label, Ex 
Mus. bot. BeroL, is characteristic of the set 
of isotypes or clastotypes of Hillebrand’s 
species, obtained by Professor Rock from the 
Berlin Museum for the College of Hawaii and 
now deposited in the Bishop Museum. There 
is also a third sheet from Lanai with the Berlin 
label and a College of Hawaii label. Rock No. 
17,060. It seems positive that these are all 
duplicates from the Hillehrand collection on 
Lanai, one given to his young field compan- 
ion, Lydgate, and two later obtained by Rock 
from the Hillehrand collection after its place- 
ment in Berlin. The Berlin originals, two 
sheets seen by Rock in 1914, were probably 
destroyed in World War 11. The specimen at 
Kew: Lanai, Hillehrand, is also doubtless an 
isotype. 
The species is named for its occurrence on 
the island of Lanai. 
6. Isodendrion laurifolium Gray, Amer. 
Acad. Arts and Sci., Proc. 2: 324, 1852; 
Gray, U. S. Explor. Exped. [official ed.] 15 
(1): 96, 1854; [public ed.] Botany, Phanero- 
gamia 1: 96, 1854. 
ILLUSTRATIONS: Figure 6. 
DESCRIPTION OF TYPE: Shrub; glabrous, 
erect, with a few short, ascending branchlets; 
older branches 3 mm. in diameter, the bark 
smooth, pale brown, with a few longitudinal 
fissures; leaf scars 2 mm. wide, suborbicular- 
shield-shaped, pale, with 3 bundle scars; 
twigs leafy for 16 cm., bearing 15 or more 
leaves, these ascending at about 45° diver- 
gence from the stem, not crowded; upper 
leafy stem 1,8-2. 9 mm. in diameter, smooth, 
shading downwards from green to reddish 
brown, roughened by the rigid stipules; nodes 
PACIFIC SCIENCE, Vol. VI, July, 1952 
2-20, commonly 2-10 mm. apart; stipules 
1.9-3 mm. long, obliquely linear-lanceolate, 
glabrous, the midrib prominent, raised, 
towards the base broadened, the narrow mar- 
gins brown membranous, glabrous and 
smooth; petioles 1-2.5 mm. long, stout, 
becoming corky wrinkled; blades 2. 2-9. 2 
cm. long, 11-30 mm. wide, firm, subcoria- 
ceous, prominently finely reticulate veined, 
linear-oblanceolate, the base abruptly short 
cuneate, the apex subacute, the margin 
slightly undulate or even remotely low sub- 
serrate; flowers single, axillary; peduncles 2 
mm. long, bracteate; pedicel 1 mm. long; 
sepals 1.9-2.25 mm. long, 0.9-1 mm. wide, 
deltoid to obliquely lance-deltoid, glabrous, 
chartaceous, nerved only by the slender mid- 
rib; corolla irregular, the lower two thirds of 
each petal forming a channel-like claw, im- 
bricate laterally, the upper ones outside, the 
lower inside, imitating a corolla tube, the 
limb expanding and reflexing in anthesis; 
lower petal the broadest and equalling the 
upper ones in length, 7.1 mm. long (when 
boiled), claw 5.2 mm. long, 1.3 mm. wide, the 
lower two thirds membranous, 3-nerved from 
the base but the lateral nerves forking above, 
the distal quarter opaque, fleshy, strongly 
channeled, the limb 1.9 mm. long, 1.4 mm. 
wide, oval, thick and fleshy, the veins almost 
invisible; lateral petals 6.9 mm. long, some- 
what ligulate, scarcely contracted two thirds 
from the base, claw almost plane, membran- 
ous, 3-nerved, ligulate but slightly widened 
near the distal end, the limb narrowly elliptic, 
the veins obscured in the fleshy opaque tissue; 
upper petals 7.1 mm. long, slightly con- 
tracted and channeled two thirds way from 
the base, the claw 5.3 mm. long, ligulate but 
broadened near the base, membranous, 3- 
nerved, the limb 1.8 mm. long, 0.8 mm, wide, 
narrowly elliptic, fleshy and opaque; stamens 
about equal, unarmed, 1.7-1 .9 mm. long, the 
filaments 0.8-1 mm. long, subulate, the 
anthers 0. 8-0.9 nim. long, 0.7 mm. wide, 
ovate above the sagittate base; ovary 3.4 mm. 
long, 2.2 mm, in diameter, ovoid, longitudin- 
