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and downy underneath. The old leaves are more or less marked 

 with yellow, especially around the margins of the leaflets. They 

 finally change to a bright rich sumach red, against which the 

 main veins remain vivid green. 



The Hawaiian sumach is very showy when in flower. The 

 flowers are polygamous; in most species of Rhus they are 

 dioecious by abortion. They are small, yellowish or creamy 

 white. They are arranged in panicles which are very large, 

 dense, terminal, compound, and broad, 30 cm. long, and many- 

 flowered. The calyx is deeply 5-lobed, imbricate, i mm. diam., 

 tomentose, persistent. The disk surrounding the base of the 

 free ovary is coherent with the base of the calyx. The petals are 

 5, 2 mm. long, longer than the calyx, imbiicate, obovate, glabrous 

 or ciliate, inserted under the margin of the disk, opposite its 

 lobes, and deciduous. 



The stamens are 5, inserted on the margin of the disk, alternate 

 with the petals. Filaments subulate, very short; anthers ovate, 

 obtuse, often small or abortive in the female flowers, introrse, 

 2-celled, attached by ihe back and longitudinally dehiscent. 



The ovary is ovate or subglobose, sessile. Styles 2-3, short, 

 terminal or sometimes united ; stigmas capitate. Ovule solitary, 

 anatropous, suspended from an erect funiculus which rises from 

 the base of the ovary. Fruit a small dry drupe, ovoid, globose, 

 or compressed, and 3-4 mm. diam. The outer coat is thin, dry, 

 and tomentose. The pulp is more or less resinous, similar to the 

 Japanese commercial wax. The stone is crustaceous or bony, and 

 thin. The seed is ovate or reniform, commonly transverse, 

 without albumen; cotyledons foliaceous, generally transverse; 

 radicle long, uncinate, laterally accumbent. The fruits of the 

 species are used by the Himalayan hill folk as a i emedy for colic. 

 The old fruit clusters are persistent, dry, compact, and with 

 reflexed branchlets, on naked twigs. They are 10-15 cm. long 

 and 6-10 cm. wide. 



The Hawaiian sumach occurs on all the larger islands of the 

 archipelago at elevations of 600-2,000 ft., throughout the low- 

 land and lower forest zones, in both dry and wet situations. It 

 grows in more or less isolated clumps, and never forms pure 



