199 



Cyanea angustifolia Hillebrandii Rock in Torrey Dot. CI. Bull. 44:234. 1917. 

 Cxuiica aiujiistifulia (Cham.) Hillebr. Flora Hawaii. Isl. 253. 1888 (in partj. 



A small, sparinuly liranchiui:- shrub 2 m hiuh. branches slender, glabrous; 

 leaves ovate to ovate-oblong, 8-14 em long-, 3-4 cm wide, on petioles 2.5-3.5 em 

 long, glabrous above, puberulous underneath, serrulate to crenulate, acute at 

 both ends, peduncle very short, 1-1.5 em 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. 



MAUI : Northern slopes of ]\lt. Haleakala, Keanae Valley, elevation 1000 

 feet, flowering April 1911, Rock no. S799 in the herbarium of the College of 

 Hawaii ; — West Jlaui, Lydgate no. 140 in Herbarium Berlin. 



The leaves in var. Hillchrundii are smaller than in the species; the flowers 

 are also much smaller, and on very short peduncles (1.5 cm). It grows along the 

 lower ditch trail and in Keanae Valley, on the windward slope of ]\It. Haleakala. 



Cyanea angustifolia lanaiensis Rock in Torrey Bot. CI. Bull. 44:235. 1917. 

 Cxanca anijitstifnlia (i. \ar. Hillebr. Flora Hawaii. Isl. 253. 1888. 



(Plates' 10:i, 104.) 



Plant 3-4 m high, branching a few decimeters above ground, the branches 

 erect and densely foliose at the apex; leaves dark green, membranous, glabrous 

 on both sides, elongate-oblong, bluntly acute at the apex, rounded at the base, 

 or slightly unevensided, coarsely serrate with uncinate teeth, 10-18 em long, 4-5 

 cm wide, on petioles 4.5-6 cm long; racemes much shorter than in the typical 

 form of the .species, about 3.5 cm long, few-tlowered, flowers smaller, whitish. 



LAXAl: Without definite locality. Voyage de M. J. Remy 1851-1855, no. 

 304 in Herbarium Paris (marked L'ollaiidia) ; — July 1870, llillebrand in Her- 

 barium Berlin ; — ]\lahana Valley, flowering July 1910, Rock no. 10257 in the 

 herbarium of the College of Hawaii ; — Kaiholena Valley, flowering July 23, 

 1910, Rock no. 8053 in the herbarium of the College of Hawaii, and the Gray 

 Herbarium; — ravine, moist woods, September 22, 1916, A. S. Hitchcock no. 

 14705 in the U. S. National Herbarium. 



The variety lanaiensis differs from the typical form of the species in the 

 broader leaves, which are rounded at the base and coarsely serrate with uncinate 

 teeth; also in the short and few-flowered racemes. 



llillebrand 's specimen is labeled Dclissca infer angustifoliam et obtusam, 

 while Remy's specimen in the Paris ]\luseum is labeled Bollandiaf 



Cyanea angustifolia racemosa Hillebr. Flora Hawaii. Isl. 253. 1888. 



(Plate 10.3.) 



Leaves ehartaceous. longer than in the species. 21-22 cm long, 4-6.5 cm wide, 

 crenate, on petioles of 10-10.5 em ; peduncle much elongate 12.5-25 cm long, 

 drooping, naked in the lower third or half, racemosely flowered above, pedicels up 

 to 2.5 cm long; flowers pale, as in the species. 



OAIIU: Kaala mountains, Hillebrand in Herbarium Berlin. 



LANAI : Waiopaa, G. C. Munro, September 18, 1916, flowering, A. S. Hitch- 

 cock no. 15572 in the U. S. National Herbarium, ])art in the herbarium of the 

 College of Hawaii. 



Variety rav( inosei is intermediate liefween ('. anjjiistifuh'a and ('. Faurici and 

 C. Harcjiji: it was previously only recorded from ilt. Kaala, Oahu, the moun- 

 tain range nearest Kauai, on which island the two latter species occur. G. C. 

 Munro collected varietv racemosa on the island of Lanai. 



