20 
PACIFIC SCIENCE, VoL XV, January 1961 
mm. infra involucrum articulate; bracteis 7-8 
lanceolatis 5-8 mm. longis. Calyce 3 cm. longo 
1.5- 1. 8 cm. lato tubulate partite 1-1.3 cm. 
piloso 10-nervato lobis acutis viride lactucae 
coloratis (cf. Ridgway); petalis 6.5 cm. longis 
2.5- 3 .0 latis rubro-coralaceis coloratis extus pub- 
escentis; columna staminarum 6 cm. longa gra- 
cilis glabra in apice 5-lobata acuti, apicibus fil- 
amentium liberis 4-5 mm. longis in quarta 
superiore columnae collacatis. Ramuli styli 5, 
1.0 cm. longi modice puberulenti in 1.5 mm. 
stigma globosa terminanti. Ovario 5-loculare 
1.0 cm. longis 6-8 mm. latis. Capsula 2.0 cm. 
longa 2.5 cm. lata superne. Seminibus 4 mm. 
longis 3 mm. latis globoso-reniformibus, fusco- 
sericeis. 
Tree 6 m. tall, diameter at base 5-8 cm. Stip- 
ules 7-12 mm. long. Petiole 0.5-2 cm., slightly 
pilose. Leaves 6-12 cm. long, 3-5 cm. wide, 
elliptic-oblong, upper three-fourths of margin 
serrate, lower fourth entire, midrib prominent, 
veins scarcely palmate, "spinach green.” Ped- 
uncle 1-1.5 cm. long, articulate 3 mm. below 
the involucre. Lanceolate bracts 7-8, 5-8 mm. 
long. Calyx tubular, 3 cm. long, 1. 5-1.8 cm. 
wide, cleft for 1-1.3 cm., lobes acute, pilose, 
10 -nerved, "lettuce green.” Petals laterally sub- 
falcate, 6.5 cm. long, 2. 5-3.0 cm. wide, "coral 
red,” puberulent on outer surface. Staminal 
column 6 cm. long, slender, glabrous, apex 
acutely 5-lobed. Free filament tips extend 4-5 
mm. from column, located on the upper fourth 
of column. The 5 -style branches slightly puberu- 
lent, 1 cm. long, each terminating in a 1.5 mm. 
discoid stigma. Ovary 5 -parted, 1 cm. long, 6- 
8 mm. wide. Capsule 2.0 cm. long, 2.5 cm. wide 
at upper section. Seeds 4 mm. long, 3 mm. wide, 
globose-reniform, covered with a seriaceous pu- 
bescence, dark brown. 
HOLOTYPE: Headland west of Hanakapiai, 
Napali Coast, Kauai. Altitude — 700 feet; on 
partly precipitous slope. December 22, 1956. 
H. St. John 25,989. 
SPECIMENS EXAMINED: Kauai: Hanakoa, al- 
titude of 500 ft., Jan. 12, 1956, H. F. Clay. Kala- 
lau Trail, Hanakapiai, September 1913, C. N. 
Forbes 462.K. Hanakapiai, between Hanakapiai 
Stream and Hoolulu Stream, 450 m. alt., Decem- 
ber 24, 1956, 1. E. Lane 56-561. In cultivation at 
Fig. 13. Hibiscus Saintjohnianus Roe. (Picture 
taken by Irwin Lane on the Napali Coast, Kauai.) 
Eleele, brought there from Awaawa Puhi Trail, 
Na Pali Kona Reserve, Waimea, July 29, 1957, 
Roe 258. In cultivation at Alexander Street, 
Honolulu; brought from Na Pali Cliff Trail, 
June 1, 1958, Roe 271. 
This species was brought to my attention by 
H. St. John, who has made several collections 
of it from Hanakapiai, Napali coast, Kauai. It 
has been confused with H. Kokio Hbd. and H. 
kahilii Forbes. To one who is familiar with 
these two native species, this plant is differen- 
tiated by the distinct leaf shape and by the 
vermilion-orange corolla. It has closest affinity 
to H. Kokio, from which it differs by its' longer 
stipules, shorter bracts, larger calyx, longer yet 
narrower petals, longer staminal column, larger 
ovary, longer style branches, and shorter pe- 
duncle. 
There are records at the Bishop Museum 
stating that J. M. Lydgate brought it to cultiva- 
