125 

 Lobelia hypoleuca llillebr. Flora Hawaii Isl. 238. 1888. 



(Plates 19, 42, 62, 6.3.) 



Erect subherbaceoiis, the hollow stem 1-5-2 m high, with few distant leaves, 

 hranohinf;' above, the long- branches bearing one to four distant leaves and ending 

 in a rather loose raceme 15-25 cm long; leaves broadly lanceolate 80-45 cm long, 

 2.5-7.5 cm wide, acute, gradually narrowing into a petiole up to 2.5 cm in length, 

 sharply dentate or serrulate with callous teeth, soft chartaceous, white beneath 

 with a" thick layer of matted, cobwebby wool; bracts linear or filiform, as long as 

 the pedicels or longer, the latter 12 mm long, bibracteolate near tlie base; calyx 

 tomentose white, with an elongate tube 6 mm long, the lobes of about the same 

 length, subulate from a broad base; corolla bluish, pnberulous, very slender, 

 erect, 30-36 mm long, with revolute lobes; filaments puberulous; anthers glab- 

 rous, bluish only the lower ones penicillate ; capsule whitish, cylindrical 16-18 

 mm long, the free conical vertex less than one-fourth of the length, with ten 

 warty ridges ; the calycine covering being very thin, the capsule is apt to split 

 laterally before the vertex : seeds very minute, smooth, ovoid, light brown. 



OAHU: AVaialua and llelemano Ilillebrand in Ilerbariuin Herlin and Gray 

 Herbarium; — Remy 1851-1855, in herbarium Mviseum Paris; — Punaluu ilts., 

 2000 feet, fruiting. November 14-21,. 1908, Rock nos. 807, 808, in herbarium 

 College of Hawaii; — Konahuanui. ilt. Olympus trail, flowering 1911, 1912, May 

 1918, Rock no. 1311-t in herbarium College of Hawaii. 



KATL\I : Waiakealoha waterfall, elevation 3600 feet, flowering August 

 1909, Rock;— Waialae Valley, flowering October 1911, Rock no. 12842 in her- 

 barium College of Hawaii. 



MOLOKAI: Pali of Pelekuuu, Ilillebrand. Pali of Waihanau, 3000 feet 

 elevation. l\Iay 27, 1918, Rock no. 14035 in herbarium College of Hawaii. 



MAl'I: Gulches of Ijaliaina and Wailuku. Ilillebrand. 



LAXAI: 1-pper part of mountains September 21, 1916. A. S. Hitchcock nos. 

 15603. 14675, 14665, in V. S. National Ilerliarium. 



HAWAII: Woods of Kohala, Ilillebrand;— woods of Waimea, flowering 

 October 1909, R. S. Ilosmer no. 6096 in herliarium College of Hawaii. 



Lobelia Jnjpolcuca was flrst collected by Jules Remy. It seems to be a very 

 variable species if the plants from the other islands belong to it. The Oahu 

 specimens seem to have the typical cylindrical capsule, wliile those from Hawaii 

 and Kauai seem to be more ovate. It is douiitful indeed if some of the Kauai 

 plants should be referred to this species; they appear to belong to Lohdiii )tcrii- 

 folia A. Gray, to which Wawra referred his specimen from llalemanu, Kauai, 

 no. 2108. though the typical Lobelia liypeileuea does occur on Kauai. 



On Hawaii the writer collected a specimen which was unfortunately not in 

 flower. It was over ten feet in height, had a single erect trunk about 10 cm 

 thick at the base, at the apex there was a dense crown of large leaves 60-65 cm 

 long, about 10 cm wide, on thick fleshy petioles of 3 cm; the plant is so di liferent 

 in habit from the true Lobelia hypoleuca that it deserves to be regarded at least 

 as a new form, forma »iittr<i})lni1a Rock forma nova. 



Lobelia hypoleuca forma macrophyta Rock f. n. 



Plant 3 m or more liigh. stem erect 10 cm in diameter at the base, crown of 

 leaves dense at the apex ; leaves 60-65 cm long. 10 cm wide, acute at the apex, 

 thin chartaceous, irregularly denticulate to subentire, dark green above, white 

 cobwebby woolly beneath ; petioles 3 cm long thick fleshy ; flowers and fruit 

 unknown. 



