Pittosporaceae. 



Wawra in Flora writes that P. acuminatum, described by Mann, may belong 

 to the group of P. terminalioides. This view the writer does not share with 

 Wawra, but he thinks it to be closer to P- itisigne var. /3 Hbd. However, it is 

 quite a distinct species. Specimens were collected by the writer on Kauai, to 

 which island the tree is peculiar. It is plentiful at Halemanu, and Kaholua- 

 mano at an elevation of 4000 feet, where it grows in the drier forests or on ex- 

 posed ridges. It was also observed above Makaweli at an elevation of 2000 feet. 

 Specimens from this locality differ somewhat from those of the higher elevations 

 in being much stouter, and in having coriaceous instead of chartaceous leaves. 



Pittosporum spathulatum Mann. 

 Hoawa. 



(Plate 56.) 



PITTOSPORUM SPATHULATUM Mann. Proe. Am. Ac. VII. (1867) 151, et Fl. Haw. 



Isl. (1867) 125;— Hbd. Fl. Haw. Isl. (1888) 24;— Del Cast. 111. Fl. Ins. Mar. Pae. 



VI. (1890) 111;— Pax in Engl, et Prantl. Pflzfam. III. 2. a. (1891) 111.— P. 



terminalioides Planch, var. spathulatum Grav, Bot. U. S. E. E. (1854) 231; — 



Wawra in Flora (1873) 169. 

 Branches stiff, densely foliose, the leaves dark green, sub-coriaceous glabrous, cuneate 

 or obovate-spathulate, gradually narrowing from an obtuse and rounded apex into a short 

 petiole of 1 to 1.5 cm; 6 to 12 cm long, 2 to 4 cm wide; inflorescence axillary with a yel- 

 lowish pubescence; peduncle very short, about 6 mm or more, pedicels of the same length; 

 sepals ovate-elongate, obtuse or acute, sparingly pubescent; stamens shorter than the tube, 

 anthers sagittate; ovary densely tomentose, style the length of. the ovary, stigma capi- 

 tate; capsule glabrous when old, subquadrangular, deeply furrowed or runcinate, seeds 

 smooth. 



A tree of 15 to 18 feet in height, occurring in the rain forests of Oahu, espe- 

 cially in the Koolau range. It is a very distinct and not variable species, as its 

 characteristics are quite constant. It is a rather handsome, though somber, 

 plant, and is conspicuous from a distance on account of its dark green foliage. 

 It is quite common on the upper slopes of Konahuanui, elevation 3000 feet, and in 

 the mountains of Punaluu, Waiahole, and Waikane. In the upper forests of 

 Oahu it takes the place of P. glabrum, which grows up to 2000 feet elevation. 

 Horace Mann's specimens came from Kaala Mt., Waianae range. 



Pittosporum glomeratum Hbd. 



Hoawa. 



PITTOSPORUM GLOMERATUM Hbd. Fl. Haw. Isl. (1888) 23;— Del Cast. 1. c. p. 110;— 

 Pax 1. c. p. 111. 



Leaf whorls at intervals of 5 to 10 cm, the young shoots cinereous-pubescent; leaves 

 spathulate elongate, 15 to 25 cm x 2.5 to 5.5 cm, acuminate or obtuse, gradually narrow- 

 ing into a petiole of 25 mm or less, chartaceous glabrous; peduncle axillary 25 to 32 mm, 

 Tsracteate, with a dense cluster of almost sessile flowers at the apex, pubescent, the lanceo- 

 late bracts 3 to 6 mm; sepals ovate, obtuse 2 to 3 mm, tomentose; corolla white; with a 

 ■tube of 10 mm; ovary tomentose; capsule and seeds as in P. glabrum. 



A small tree occurring at the eastern end of Oahu in Wailupe Valley. Hille- 

 brand also describes a variety /8. acutisepala from the same region, evidently a 

 slight variation. 



The species comes very close to P. glahrum and is perhaps only a form of it. 



157 



