Heller : plants of the Hawaiian islands. 815 



Pipturus kauaiensis n. sp. {Plate XLVI.) 



A small tree, eight to twelve feet high with spreading top; 

 branches glabrous, except the growing parts, which are to- 

 mentose; bark close, light brown; leaves ovate-lanceolate, acumi- 

 nate, crenate in the upper two-thirds or half, except the acu- 

 minate tip, of varying size, but the width commonly half the 

 length, base equal sided, narrowing, or sometimes rounded, the 

 upper side dark green, shortly pilose and granular under a 

 lense, the under side densely covered with short and soft white 

 tomentum, except the veins and veinlets; principal veins three, 

 dark; dioecious; flowers very small, glomerate in the axils of 

 the leaves and branches, the female more numerous than the 

 male; fruit clusters white. 



Easily distinguished from P. albidus by its thinner, narrower 

 and taper pointed leaves, which are of a different texture, and 

 by the smaller and smoother flower clusters. The branches 

 also are more slender and more regular. Weddell, in DC. 

 Prodr 16: part 1, 235, as well as Hillebrand, evidently included 

 this very distinct species in their descriptions, of P. albidus. It 

 is not uncommon in thickets along the Hanapepe river, but 

 does not occur at any great elevation. 



June 24 (2428) 



Pipturus ruber n. sp. (Plate XLVll.) 



A small tree, six to eight feet high, with short trunk, and 

 dense spreading top; branches covered with short, gray or 

 tawny hair; leaves alternate, on stout, pubescent petioles, 

 rather thick, ovate or occasionally ovate lanceolate, acute, 

 crenate from base to apex, upper surface light green, barely 

 roughened, sparingly hirsute only on the three prominent, im- 

 pressed veins; the under side pale, covered with longer and 

 coarser tomentum than is found on any other species; veins 

 prominent beneath, bright red, but fading when dry, hirsute; 

 female flowers red, densely pubescent, the clusters large. 



A handsome species, very distinct from any of the preceding. 

 The numerous clusters of red flowers, and the red veins on the 

 under side of the leaf are very conspicuous in the living plant, 

 but lose their color in the dried specimen. The male plant was 

 not collected. The tomentum on the under surface of the 

 leaves is much darker than in the other species. The flower 

 clusters are even larger than those of P. albidus, and the leaves 

 although somewhat similar in texture are much smoother on 

 the upper surface and are of a different shape. 



