Hawaiian Hibiscus — Roe 
13 
longa 8-10 cm. lata, 5-lobatis sinibus angustis, 
basi cordate, margine serrata, nervls palmatis. 
Pedunculo L5 cm. iongo, piloso echinatoque. 
Bracteis 7-8, 2-3 cm. longis subulatis teretibus, 
nonglanduliferibus, hispidis. Calyce campanu- 
lata 3 -4 cm. longa, 1.5— 1.8 cm. lata .lobis 
eglanduliferis inter lobes 1.5 cm. partitis exras 
hispida deci-nervata. Corolla citrea, tubo atro 
purpurea. Petalis 8-1 0 : cm. longis 5-8 cm. latis 
extus pubescentis, 12-16 nervatis. Ovario 0.8- 
1.0 cm. Iongo, 5 cm. kto, dense albo-villoso. 
Columna staminea 7-8 cm. longa puberula ex- 
tremitates filamentomm liberae verticillatae per 
totam columnam longitudinem exsertae, ramuli 
styli 2 mm. long! tomentosi, stigmis capitatis 
compressis. Capsula 2. 0-2. 5 cm. longa lignea 
pilosa. Seminibus angulosis hirsutis. 
Tree 10-12 m. tall, 20-25 cm. in diameter 
at base. Stipules 1-2 cm. long, pilose. Petiole 
6-9 cm. long, pilose. Leaf 9-11 cm. long, 8-10 
cm. wide, 5 -lobed with narrow sinuses, base 
cordate, apex acute, margin serrate, palmately 
veined. Peduncle 1.5 cm. long, pilose and 
bristly; bracts 7-8, 2-3 cm. long, subulate, terete, 
nonglanduliferous, hirsute hairs 2-3 mm. long; 
calyx campanulate, 3-4 cm. long, 1.5— 1.8 cm. 
wide, lobes nonglanduliferous, deft 1.5 cm. from 
apex, hirsute with colorless hair on outer sur- 
face, inner surface glabrous, 1 0 veined. Corolla 
"lemon yellow,” tube "deep purple.” Petals 8- 
10 cm. long, 5-8 cm. wide, pubescent on outer 
surface, 12-16-veined. Ovary 0.8-1. 0 cm. long, 
.5 cm. in diameter, densely pubescent with white 
villous hairs. Staminal column 7-8 cm. long, 
puberulent, free filament tips extend in rings 
the entire length of column. Style branches 2 
mm. long, tomentose. Stigmas capitate, depressed. 
Capsule 2. 0-2. 5 cm. long, woody, pilose. Seeds 
angulate, hirsute. 
holgtype: Roe 210. Second gulch east of 
Mt. Kaala, Oahu. Altitude 600 feet; about 40 
ft. up a stream bank. 
specimens examined: Oahu: Gulch north 
of middle ridge between Puu Kamaokanui and 
Puu Pane, Jan. 10, 1932, O. Degener 8961 , 
also 8962, 8963. First small gulch northwest of 
Puu Pane Peak, April 2, 1950, 0. Degener 
20943. Kapalama Heights, Kamehameha Girls 
FIG. 7. Hibiscus Brackemidgei var. kauaiana Caum. 
School (in cultivation) March 21, 1932, A. F. 
Judd . Waianae Mountains, near Mokuleia Forest 
Reserve, near valley on slope of Puu Iki, altitude 
500 ft. May 13, 1941, Karl Korte. Waianae 
Mountains, Mokaleha Cliffs, May 1917, Rock 
12986. Waianae Mountains, Mokuleia area, Feb- 
ruary 16, 1957, Roe 219. In cultivation on Alex- 
ander Street, Honolulu, April 9, 1958, Roe 269. 
Waianae Mountains, Mokuleia, second gulch 
east of Puu Kaupakuhale, northeast of Puu 
Kaala, May 14, 1933, St. John 13184 . 
There exists on Oahu in the Mokuleia sec- 
tion a population of the species that shows dis- 
tinct differences from the original Maui plants. 
This Mokuleia variety has been collected by 
Rock, A. F. Judd, Potter, St. John, Degener, K. 
H. Korte, and others. Degener made a notation 
on his plants nos. 8961, 8962, 8963 from this 
area, stating that this was a variety of H. Brack - 
enridgei Gray. Rock recently gave me a photo 
of a tree of this taxon and on the back of the 
picture he had written " Hibiscus Brackemidgei 
var., 1917. J. F. Rock, Makaieha Cliffs, Mo. 12, 
986.” 
This variety takes the form of an erect tree 
(reaching 30 ft.). It differs from the species 
in its leaf shape, size, and pubescence, and in 
bract number and surface lengths of petiole, 
stipules, calyx, petals, and column. 
