234 Rock: Notes ON HAWAIIAN LOBELIOIDEAE 
foot of the letter is a note, probably written by Professor Gray, as 
follows: “‘ Write and send the Cyanea to Hillebrand.” 
Hillebrand referred this plant doubtfully to Cyanea Kunthiana 
(Gaud.), a species figured but not described by its author* under 
the name Delissea Kunthiana. That it is not this species is evi- 
denced by the fact that the lobes of the mature corolla are exceed- 
ingly short and retrorsely dentate or scabrous; the whole aspect, 
moreover, is different from the plant figured. 
6. Cyanea truncata comb. nov. 
Rollandia truncata Rock, Coll. Haw. Publ. Bot. Bull. 2: 44. 1913. 
After careful reconsideration, while arranging the manuscript 
for his monograph on the Hawaiian Lobelioideae two years ago, the 
writer came to the conclusion that this species must be trans- 
ferred to the genus Cyanea. Thestaminal column is free from the 
corolla and therefore belongs to Cyanea, even if the whole outward 
appearance is decidedly that of a Rollandia. It seems to furnish 
the intermediate between the two genera, as was pointed out by 
the writer in the original publication. Cyanea Juddii Forbes (Occ. 
Pap. Bish. Mus. 6:3, 68. 1916) is probably identical with it. 
The type of the species is shown on PLATE 15. 
7. Cyanea angustifolia Hillebrandii var. nov. 
Cyanea angustifolia (Cham.) Hillbrd. Fl. Hawaiian Isl. 253. 1888 
in part). 
A small, sparingly branching shrub 2 m. high, branches slender, 
glabrous; leaves ovate to ovate-oblong, 8-14 cm. long, 3-4 cm. 
wide, on petioles 2.5-3.5 cm. long, glabrous above, puberulous 
underneath, serrulate to crenulate, acute at both ends, peduncle 
very short, I-1.5 cm. long; pedicels 5-10 mm. long, flowers as in 
the typical form of the species, only very small, 15 mm. long, 1.5 
mm. wide. 
Maut: northern slopes of Mt. Haleakala, Keanae Valley, at an 
elevation of 1,000 feet, April, 1911, J. F. Rock 8799 (flowering 
specimens), in the herbarium of the College of Hawaii. 
* Voy. Bonité pl. 77. 1839-52. 
