Myrsinaceae. 



associated with Dodonaea eriocarpa, Argyroxiphium virescens, Raillardia platy- 

 pkylla; S ant alum Haleakalae, Geranium arbor eum, and others. 



It was collected by the writer fruiting on Oct. 11, 1910. The type is number 

 8591 in the Herbarium of the College of Hawaii. 



It is at once distinguished from other Suttonia by its small spathulate, very 

 thick leaves, and branchlets, which are densely covered with the rather large 

 fruits. In the dry specimens the leaves turn pale and the fruits yellowish. 



Suttonia volcanica Rock sp. nov. 

 Kolea. 



A small tree 4-5 m high, with slender branches, glabrous throughout; leaves dark green, 

 very prominently and pale veined, midrib red, pale underneath, not dotted, thin chartaceous, 

 shining above, dull underneath, ovate-oblong, bluntly acuminate or acute, or slightly obtuse, 

 rounded at the base, 5-10 cm long, 2-4.5 cm wide, on somewhat margined petioles of 6-8 

 mm; the slender branchlets densely covered with mature fruits; (flowers unknown); fruits 

 2-8 in a cluster on very slender glabrous pedicels of 6-8 mm; bracts reddish-brown, dentiform 

 to linear, the persistent calyx parted two-third its length into 5-7 triangular lobes of 

 1 mm, with slightly ciliate margins; fruit subglobose or rather spheroidal, black when 

 mature, very small for a Suttonia, 3-4 mm in diameter, glabrous, crowned by the stigma. 



This species is remarkable for its very small fruits, which are densely clus- 

 tered around the slender branchlets, and for its leaves, which are chartaceous, 

 thin, and prominently veined, but not punctate. It was found by the writer 

 on the great central plain between Mauna Loa and Mt. Hualalai on Hawaii on 

 the cinder slopes of a crater called Puuokeanue, at an elevation of 5300 feet in 

 company with Solatium incompletum, S ant alum Freycinetianum, and Raillardia 

 sp. It was collected fruiting Feb. 13, 1912. The type is no. 10230 in the Her- 

 barium of the College of Hawaii. 



Var. lavarum Rock var. nov. 



Leaves elliptical-oblong, to oblong-lanceolate, of the same texture and venation as the 

 species, obscurely acute, or obtuse, slightly contracted at the base, dark green above, dull 

 and lighter underneath, not punctate, 6-12 cm long, 2-3.5 cm wide, on black petioles 10-15 

 mm, inflorescence in fascicles, mainly in leaf-axils and also along the branches but not 

 very numerous; inflorescence of 8 flowers, on slender pedicels 4-7 mm, bracts as in the 

 species; calyx parted one-half its length into 5-7 ovate rounded lobes with ciliate margins; 

 petals pubescent with ciliate-fimbriate margins, densely punctate with rather large black 

 dots; anthers sagittate, with pubescent apex; ovary globose, with sessile capitate stigma; 

 fruits as in the species, little larger. 



The variety lavarum occurs on the southern slopes of Mt. Haleakala, Maui, 

 on the aa lava fields of Auahi, on the land of Kahikinui, an exceedingly dry 

 locality at an elevation of 2000 feet. It was collected by the writer flowering 

 and fruiting November, 1910. The type is number 8678 in the College of 

 Hawaii Herbarium. 



It is a small tree and quite distinct from Suttonia Lessertiana and its numer- 

 ous variations, which occur at little higher elevation in the same locality. In 

 texture and venation of leaf, shape and size of fruit, as well as general aspeet, 

 it is almost identical with Suttonia volcanica from Mauna Loa, Hawaii, of which 

 it is here made a variety. 



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