Pittosporaceae. 



Pittosporum insigne Hbd. 

 Hoawa. 



(Plate 62.) 



PITTOSPOKUM INSIGNE Hbd. Fl. Haw. Isl. (1888) 25; Del Cast. 111. PI. Ins. Mar. Pac. 

 VI (1890) 110; Pax in Engl. et Prantl Pflzfam. Ill 2. a (1891) 111. 



Leaves in distant whorls, thick, chartaceous. glabrous, obovate-oblong, acuminate 

 6 to 12 cm x 2.5 to 4 cm, contracting into a short petiole of 1 to 2 cm; flowers terminal 

 in the uppermost leaf -whorls and axillary or all along the stem; inflorescence a corymbose 

 raceme (or in East Maui specimens more or less glomerate) the flowers on pedicels of 1 to 2 

 mm, the rhachis tomentose, surrounded at the base with numerous linear bracts of 5 to 10 

 mm, bearing 15 to 25 flowers on pedicels of 4 to 8 mm (in specimens from the type 

 locality) ; sepals ovate, acute, densely tomentose, tomentum light yellowish, corolla large, 

 tube 10 to 12 mm, the lobes broad ovate about 8 mm; stamens half the length of the 

 tube, style and ovary as long as the tube, the latter densely villous; capsule oblong about 

 25 mm long, deeply wrinkled, seeds smooth. 



A very handsome tree with large cream-colored flowers; it reaches a height of 

 about 25 feet and has stiff ascending branches. Hillebrand's description, which 

 has been enlarged upon to suit the abundant material which is at the writer's 

 disposal, agrees exactly with plants from the type locality. It is not uncommon 

 on West Maui, above Kaanapali, at an elevation of about 3500 to 4000 feet, 

 where it grows in the rain forest. It was also collected by the writer in lao 

 Valley, on the same island. 



On East Maui, in the rain forest of Mt. Haleakala, at an elevation of 4000 

 feet, the writer met with a Pittosporum which he must refer to this species, 

 though differing somewhat from the trees found on West Maui. This is, how- 

 ever, not surprising, since all Hawaiian Pittosporums are very variable. The 

 East Maui plants differ from the West Maui ones in the inflorescence, which 's 

 shorter peduncled and has almost sessile flowers ; the latter agree, however, with 

 those from the type locality. On the northern slope of Haleakala, at Nahiku, 

 on the crater Hinai, at an elevation of about 3000 feet, the writer met with a 

 large number of trees which will also have to be referred to this species; they 

 differ from the type specimens in the young leaves, which are covered with light 

 brown tomentum, and in some other minor points. 



On the same mountain, at 2000 feet elevation, the writer collected Hillebrand's 

 var. ft of this species, which is easily distinguished by the long axillary pe- 

 duncles, which measure often 5 cm. and more. The variety is a small tree, 15 to 

 18 feet in height. 



Pittosporum Hawaiiense Hbd. 



Hoawa. 

 (Plate 63.) 



PITTOSPORUM HAWAIIENSE Hbd. Fl. Haw. Isl. (1888) 26; Del Cast. 111. Fl. Ins. 

 Mar. Pac. VI. (1890) 110; Pax in Engl. et Prantl. Pflzfam. III. 2. a (1891) 111. 



Leaves scattering or in distant whorls, large obovate-oblong, acute strongly nerved, 

 glabrous on both sides when old or pubescent underneath, young shoots covered with a 

 dense fawn colored tomentum on both sides, thick chartaceous, 12 to 22 cm long, 5 to 7 cm 

 wide, on petioles of 1.5 to 3 cm, flowers axillary or cauline, racemose rarely terminal on 

 hirsute peduncles of about 15 mm, pedicels 3 to 7 mm; sepals ovate, triangular 3 



169 



