CYRTANDREAE HAWAIIENSES 
271 
The species is very common all over Hawaii, if we regard it as a 
variable species. The typical C. platyphylla was collected by the 
writer in the forest near Kilauea Volcano on Hawaii. As the descrip- 
tion by Asa Gray is rather brief especially in regard to inflorescence, the 
following may serve as the diagnosis for 
Cyrtandra platyphylla typica Rock (See PI. XXI) 
Leaves large, suborbicular, rounded or cordate at the base, shortly 
acuminate at the apex, *i2-20 cm. long and wide, the petioles 3-6 cm. 
long, pubescent to hirsute on both sides with yellowish-brown multicel- 
lular, transparent hairs, especially so on midrib and veins as well as 
petioles, the latter densely hirsute, the hairs darkening to deep brown 
near the equally brown hirsute stem; inflorescence hirsute, the peduncle 
4 cm. long, bearing at the apex two obovate acute sessile bracts, the 
latter 20 mm. long, 8 mm. wide, and several-nerved ; two distinct cymes 
at the end of this common peduncle, each bearing three to four long- 
pedicellate flowers, making the inflorescence subumbellate ; between 
these two cymes two single, long-pedicellate flowers, the lateral cymes 
possessing a secondary peduncle i cm. long, and pedicels varying in 
length from 12-20 mm.; the central pedicels without secondary pe- 
duncle being 25 mm. long; calyx unequally divided into five lobes, 
hirsute on both sides; corolla tube about 15 mm. long, cylindrical, 
straight, hirsute outside, with the exception of the lower portion, 
exserted, the lobes rounded, spreading and subequal, glabrous inside 
as is the tube; ovary oblong; style, including the very small, bilobed 
stigma, 5 mm. long; ovary and style absolutely glabrous. 
Hawaii: In forests, U. S. Explor. Exped., in Gray Herbarium; 
forests near Kilauea Volcano, flowering Aug., 191 7, Rock no. 12990 
in herb. College of Hawaii. 
The plants coming nearest the typical form described above are: 
Cyrtandra platyphylla stylopubens Rock n. var. 
Leaves suborbicular, coarsely serrate, 12 cm. long, 10-12 cm. wide, 
rounded (not cordate) at the base, shortly acuminate at the apex, 
sparingly hirtulose on the upper surface, the transparent cellular hairs 
caducous on the older leaves, only very sparingly hirtulose underneath, 
thin-papery; petioles 3.5-5 cm. long, hirsute; inflorescence a few 
(three-) flowered cyme; common peduncle 10-12 mm. long, bearing at 
the apex a pair of subfoliaceous, ovate-acute bracts, i cm. wide and 
2 cm. long; pedicels about 15 mm. long when with flower, 20 mm. when 
with fruit, hirsute throughout with dense pubescence, the hairs 1.5 mm. 
long, horizontally spreading, the pedicels dilating near the calyx; 
calyx thin, submembranaceous, green, but with numerous scattered 
brownish hairs; the lobes lanceolate-oblong, irregular in length and 
