10 



Pedicels single, 2-4 lines long, pubescent, with a pair of rather 

 broad scarious bractlets at the middle. Sepals connected at the 

 base, 2^-3 lines, lanceolate, silky, scarious with thin margins. 

 Petals 5-6 lines long, rather thick, greenish-white. Stamens 

 nearly half the length of the sepals, the anthers as long as the 

 filaments. Style almost straight, of even height with the petals. 

 Capsule 6 lines long, each placenta with 2-5 obovoid pale seeds. 

 The flowers are fragrant. 



On all the islands, from Xiihau to Hawaii, in the scrub vegeta- 

 tion on the semi-xerophytic foothills and exposed open ridges, at 

 elevations of 1,000-3,000 feet. Native name "Aupaka." 



13. Isodendrion longifoUiim Gray. Described as above, loc. cit., 

 p. 95, pi. 9. 



A glabrous shrub reaching a height of six feet or more, with 

 rather stout branches and scattering leaves. Stipules erect, 

 triangular or lanceolate, i3^-2 lines long. Leaves chartaceous, 

 pale, shining, obovate-oblong, obtuse or shortly acuminate, 

 gradually narrowing to the base, repandly crenate or subentire, 

 6-8 in. long by 2-2Y2 in. broad, on short petioles of 3^-i in. 



Flowers single, from short and thick bracteate spurs, the naked 

 pedicels i3^ lines long. Sepals 2 lines long, glabrous. Petals 

 twice as long, strap-shaped, scarcely dilated above, purplish- 

 white. Stamens as for 12, the filaments curved. Capsule 3-5 

 lines long. 



Confined to the island of Kauai, Wai-ale-ale, and the Waianae 

 Range on Oahu, Ka-ala, at elevations of 2,000-3,000 feet. 



14. Isodendrion laurijolium Gray, Described as above, loc. cit., 

 p. 96. 



A small glabrous shrub, the stipules subulate, brownish. 

 Leaves oblong, acute, rounded at the base, repandly crenate or 

 subentire, pale below, chartaceous, shining, 3^^ in. long by i in. 

 broad, on petioles of 1-2 lines. 



Flowers single, bi-bracteolate, on pedicels of 1-2 lines, or the 

 pedicels on bracteate spurs and naked. Other data not known. 



Recorded only from the Koolau Range, island of Oahu, on 

 exposed ridges of Wailupe Valley, a semi-xerophytic region. 

 Little is known concerning this rare and highly localized species. 



The following table will aid in roughly distinguishing the 

 Hawaiian violets: 



