134 Rock: NEw HAWAIIAN PLANTS 
tubercles at the base, 18 mm. long, 15 mm. wide; calycine lobes 
broadly triangular, acute, 5 mm. each way, with broad sinuses 
intervening; corolla strongly arcuate, 7-8 cm. long, glossy, glab- 
rous, dark purplish outside, slit at the back three fourths its 
length only when fully mature, the five lobes of the corolla en- 
tirely connate; staminal column protruding, perfectly glabrous, 
pale, anthers glaucous, glabrous, the two lower only penicillate; 
style black, the stigmatic hairs encircling the stigma, the latter 
yellowish tinged with purple; flowers usually ten on a peduncle, 
crowded at the apex; fruits globose, nearly 25 mm. each way, dark 
purplish black, locules small, each containing from six to twelve 
rather large whitish seeds; milky juice of the plant yellowish. 
[PLATE 6.] 
Hawall: in the forest on the windward slope of Mauna Loa, 
near Glenwood at 22 miles, along the Homestead Road at an ele- 
vation of 2,200 feet, August 27, 1917,W. M. Giffard 12802, (flower 
buds) in the herbarium of the College of Hawaii; along the Vol- 
cano Road at 23 miles, in wet forest, September 1, 1917, Rock & 
Holm 128026, (flowering and fruiting specimens), TYPE, in the 
herbarium of the College of Hawaii. 
This very remarkable plant, which is closely related to Cyanea 
superba (Cham.) Gray, differs from it in the pubescent, deeply 
undulate leaves, which are lobed at the base instead of being entire; 
in the glabrous, much shorter peduncle, and in the glabrous deep 
purplish black flowers and fruits. ‘Cyanea superba occurs on the 
island of Oahu in the gulches of Makaleha and Mt. Kaala, while 
Cyanea Giffardii occurs on the southernmost island of the group. 
It is also much statelier than Cyanea superba, as it reaches a height 
of thirty feet, with a single crown of leaves at the apex. It grows 
in company with Antidesma platyphyllum Mann, Labordia, 
Cyrtandra, Straussia hawatiensis Gray, Strongylodon lucidum 
Seem., Clermontia parviflora Gaud., Cibotium Menziesii Hook. and 
C. Chamissoi Kaulf., the last two being the common tree ferns of 
the region. 
_ When the species was first discovered by Mr. W. M. Giffard, 
in whose honor it is named, only two plants were observed, one with 
large flower buds and the other without flowers, the latter plant 
divided into three branches at the apex, on account of an injury. 
The mature type specimens, with flowers and fruit, were col- 
lected on the road to Glenwood and the Volcano, at an elevation 
