12 



very narrow, 2 cm long, free ; calyx saccate, as long as the 

 bracteoles, deeply and unevenly 2-3 cleft, lobes acuminate, many 

 nerved, yellowish-green outside, with stellate hairs, glabrous in- 

 side ; corolla convolute, curved, only the very apex slightly open- 

 ing, not spreading as in Hibiscus, dependent on pedicells of 2-3 

 cm, petals erect 5-6 cm long, acute at the apex, oblique, oblong, 

 deep magenta inside, grey with a stellate, hispid tomentum on the 

 exposed parts, especially on the prominent nerves ; staminal 

 column one-third longer than the petals, with numerous long fila- 

 ments on nearly half its length, hispid at the base ; style branches 

 sub-erect 5 mm hispid ; stigmas flesh-colored ; capsule woody 

 oblong 4-5 cm x 2-2.5 cm broadest at the base tapering towards 

 the apex, rugose covered with stellate hispid hairs ; the calyx and 

 bracteoles deciduous in mature fruits, endocarp chartaceous 

 shining glabrous; seeds large 7-10 mm reniform covered with a 

 whitish grey wool. 



The type material (No. 8773 Herbar. Board of Agriculture and 

 Forestry, T. H.) was collected in April, 1911, in company with 

 Mr. W. M. Giffard of Honolulu, who was the first to introduce 

 many beautiful varieties of Hibiscus into the Territory and in 

 whose honor the plant is named. Only one tree was found on the 

 eastern slope of Mauna Loa at Puaulu on the land of Keauhou a 

 few miles from Kilauea Volcano, at an elevation of 4300 feet T 

 within the area of the proposed National Park. 



Hibiscadclphus Wilderianus Rock sp. n. 



Arbor 5 m, trunco erecto ; foliis orbiculatis vel trilobatis cor- 

 datis, apice acutis, in petiolis stramineis 7-10 cm longis, palmato- 

 quinque- rarius septemnervatis, supra puberulis subtus pilis minu- 

 tis stellatis inspersis, nervis prominentibus hispidis ; stipulis par- 

 vis subulatis puberulis ; floribus solitariis in pedicellis 4 cm longis ; 

 bracteolis linearis 2 cm longis, uninerviatis liberis ; calyce saccato 

 inaequilatero trilobate, extus hirsuto intus puberulo, lobis acumi- 

 natis ; (flores aperti ignoti). Petalis luteis in gemma; capsula 

 ovoidea 3.5 cm x 3 cm, nigranta tuberculata, stellato-hispida 

 lignosa. 



In insula Maui ; J. F. Rock leg. in declivibus mentis Haleakala 

 meridiem versus Nov. a. 1910. 



