Sapiudaceae-Rhamnaeeae. 



the lVfl.$f. and in Tahiti, Apiri. It is the Ake of Rarotonga and New Zealand; 

 in the latter place often called Akeake. 



Dodonaea eriocarpa Smith. 



Aalii kumakani. 



(Plate 109.) 



DODONAEA ERIOCARPA Smith in Rees. Cycl. XII. No. 6; DC. Prodr. I. (1824) 617; 

 Eudl. Fl. Suds. (1836) No. 1540; Gray Bot. U. S. E. E. (1854) 260; Mann Proc. 

 Am. Acad. 1. c. et Flora Haw. Isl. 1. c. p. 176; Hbd Fl. Haw. Isl. (1888) 88; 

 Del Cast. 1. c.; Heller. PI. Haw. Isl. (1897) 839. 



Flowers polygamous, with male, female and hermaphrodite flowers on the same plant; 

 leaves narrow, lanceolate or oblaneeolate, acute, puberulous when young; panicle terminal, 

 pubescent; sepals 5, ovate, pubescent, stamens 10, round a ciliate torus in the male flow- 

 ers; ovary pubescent, shortly stipitate; style short, stigmas indicated by 4 dots, or 3 to 6 

 mm long in the female flowers; capsule turgid; 8 to 16 mm high, 3 to 4 winged, pubescent 

 along the margins of the wings; seed ovoid. 



The Aalii kumakani is a small shrub, or tall, much-branched shrub or medium- 

 sized tree of 20 feet or so in height. It differs very little from the Aalii kuma- 

 kua, and that mainly in the pubescent capsules, which are three or four- 

 winged, instead of having two wings. It is a shrub on the leeward side of Kauai, 

 above Waimea on the open, barren slopes at an elevation of 2000 feet, and is a 

 small tree on the upper slopes of Mt. Haleakala at elevations of 6000 to 8000 

 feet, where it grows in gulches and along dry stream beds in company with a 

 species of Suttonia, with the Silversword, Argyroxiphium sandwicense var. 

 macroceplialum, A. virescens, the green sword plant, and numerous other Com- 

 positae, as Raillardia, and Artemisia. It is a handsome tree with dark-green, 

 viscous, shining leaves, forming a beautiful, symmetrical, round crown. It also 

 occurs on Haw r aii in the dry regions of Kau, and on the central plateau on the 

 slopes of Maim a Loa. 



On Molokai above Kamalo grows another species (Dodonaea stenoptera Hbd.) 

 peculiar to the above locality. It is, however, never a tree and therefore here 

 omitted. 



RHAMNACEAE:. 



The family Rhamnaceae occurs in all regions whose climate permits lignaceous 

 growth. The genus Rhamnus is the widest distributed; its center of develop- 

 ment is Europe and extra tropical Asia. Here in the Hawaiian Islands the 

 family, with its 45 genera, has only two representatives, the genera Alphitonia 

 and Colubrina, with only one endemic species belonging to the latter genus. 



KEY TO THE GENEEA. 



Fruit three-grooved at the apex, the calycine cup not extending beyond the base. 



Colubrina 

 Fruit not grooved, globose, the calycine cup extending to the middle Alphitonia 



COLUBRINA Brongn. 



Sepals, petals and stamens 5. Calycine cup hemispherical, not extending beyond the 

 ovary. Disc broad annular, more or less flat. Style trifid. Ovary immersed in the cup 

 of the calyx, three-celled. Fruit dry or with somewhat fleshy exocarp, enclosed at the 



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