Euphorbiaceae. 



prominent veins, and always with a villous patch in the angles of rib and veins; panicles 

 short, branching only near the base; ovary tomentose; drupe much smaller than in A. 

 platypht/Uum, 4 to 6 mm, black; female calyx tomentose, 5 to 6 cleft; style branches very 

 short, subentire. 



This species, unlike the previous, is confined to the dry districts, especially 

 to the aa (rough) lava fields. It does not reach the height of A. platyphyllum, 

 but has a beautiful round, symmetrical crown. l"he tn7nk is short and about 

 10 inches to over one foot in diameter. The bark is deeply corrugated, longi- 

 tudinally furrowed, fibrous, and whitish. The leaves are ovate, generally heart- 

 shaped at the base, not glossy, of a dull-green, and huve^ villous patches on the 

 underside in the angles of rib and veins, giving them a brownish color. The 

 berries are much smaller than in the Hame or Haa, and are blackish. 



It inhabits the dry region of the lower elevations and may be found on the 

 southern slope of Haleakala on the aa lava fields of A.uahi in company with 

 Reynoldsia, Maia sandwicensis, Xylosma Hillebrandii, etc. On Oahu it is 

 found in the Waianae range, but it is most plentiful on the lava fields of South 

 Kona, Hawaii, especially at Kapua (2000 feet), where it forms about 60 per 

 cent of the tree growth. 



CLAOXYLON Juss. 



Dioecious, rarely monoecious. DisCus of various formation. Male flowers: calyx 

 subglobose, 3 to 4 cleft; filaments free, anthers extrorse; without rudimentary ovary. 

 Female flowers: calyx less divided, 2 to 4 lobed. Discus entire or lobed. Ovary 3 to 2 

 celled. Stj'les short, free or united at the base. Seeds without caruncle, globose. Albu- 

 men fleshy. Cotyledons flat. — Glabrous or tomentose trees or shrubs. Leaves alternate, 

 lietioled, often large, subcoriaeeous, entire or serrate; inflorescence axillary single or fas- 

 ciculate, shorter than the leaves. Flowers small, the male flowers usually fascicled, the 

 female flowers single under each bract. 



The genus Claoxylon consists of over 40 species, and is distributed in the 

 tropics of the old world, from Africa to the islands of the Pacific. Two species 

 occur in these islands, two in New Guinea (C. longifolium (Bl.) MuU.-Arg., and 

 G. hicarpellatum Laut. & Sch.j. One species is recorded from New Caledonia, 

 one from Tahiti, and two from Viti or Fiji Islands. Of the Hawaiian species 

 only one is arborescent. 



Claoxylon sandwicense Mull.-Arg. 



Poola. 



(Plate 98.) 



CLAOXYLON SANDWICENSE Mull.-Arg. in Linnaea XXXIV. (1865) 165; et in DC. 



Prodr XV 2. (1866) 780; — H. Mann Proc. Am. Acad. VII. (1867) 203;— Seem. 



Flora Vit. (1867) 224;— Wawra in Flora (1875) 148;— Hbd. Fl. Haw. Isl. (1888) 



398;_Del Cast. 111. Fl. Ins. Mar. Pac. VII. (1890) 291;— Pax in Engl, et Prantl 



Pflzfam. III. 5 (1896) 48. 

 A sinall soft wooded tree, with pale spreading branches, the youngest shoots tomentose; 

 leaves obovate-oblong or lanceolate, 10 to 20 cm long, 5 to 7 cm wide, on petioles of 2.5 to 5 

 cm shortly acuminate or obtuse, erenate-serrate with callous teeth; membraneous, lurid 

 gre'en, sca'bro papillose, but glabrate; flowers clustered in distant fascicles of 2 to 4 and 

 minutely bracteate along a simple rachis of from 7 to 12 cm in length. Male flowers: 

 calyx 6 mm, parted to the base into 3 (rarely 2 or 4) triangular lobes; no disc or glands, 



253 



