27Z 



nothing in oonnnon with Cijaiira pilosa. thougli the leaves do resemble IioIIandia 

 calyciiia in outline only. Di'. Gray's material was too scanty, wliieh accounts 

 for his great many mistakes. 



Cijaiica 'pilosa Gray is certainly a very distinct species and is represented in 

 the forests of Hawaii liy several varieties. The species occurs on the windward 

 side of ilanna Kea at the lower nuirgin of the forests, where it was collected by 

 the IT. S. Exj)loring Expedition, and in the wet forests back of AVaimea. facing 

 the big Wainiea plain which is part of the slope of ilauna Kea, and also near 

 the summit of the Kohala Mountains. The writer recognizes four distinct varie- 

 ties, which occur all on the same island; two on the slopes of Mauna Loa (that 

 is. one on the southern slope, in the forests of Naalehu; the other on the wind- 

 ward side of ]\Iauna Loa, in the vicinity of the Volcano of Kilauea). The other 

 two, var. Boiidiaiia and var. mrgacarpa. occur in the swampy forests of the 

 Kohala ^Mountains at an elevation of 4200 feet, in company with lierliaceous 

 species of Cijrtandra and Lahordia. The specimen collected by ilacrae, Ins. 

 Owhyhee, ad montem Kaah Jinie 1825, belongs to variety drnsifiora. Though 

 there are only single fruits remaining on the peduncle, the jilant agrees in all 

 other respects with that variety, the fruits having evidently been lost; in its 

 luitural habitat the plant, which is here figured, has a densely-flowered inflor- 

 escence, which, in order to preserve the plant, has to lie thinned out. ; var. glah- 

 n'folia was first collected by J. Remy on Hawaii, no. 303 in herb, ^luseum Paris, 

 and labelled J'oHandia. 



Cyanea pilosa is represented on ilaui by Cyaiua Bishopii. to which it is 

 closely related, but differs in the smooth corolla lobes, which are retrorsely den- 

 tate or scabrous in the latter species. Cyanea pilosa forms a distinct section in 

 the genus with the following relatives: Cyanea Bishopii, Cyanea Copelcndii, 

 Cyanea stictopJnjlla, and vaguely Cyanea hirtclla which forms the transition 

 type to another section which includes Cyanra recta, Cyanea fissa. Cyanea 

 Gayana and others. 



Cyanea pilosa densiflora Rock The Indig. Trees Hawaii. Isl., add. 3US. 1''13. 



(Plate 1^54.) 

 Leaves olilong-obovate, same as in the species; somewhat fleshy, white or 

 silvery underneath, dark green above; the hirsute 10-16-flowered peduncle very 

 short, pedicels hirsute; flowers white or with purplish tinge; staminal colunni 

 M'hite, glabrous; anthers wliite, hirsute, the lower ones jienicillate only; berry 

 dark orange colored. lO-ribbcd. I'l'owncd by the small linear I'alycine lolies. sjiai'- 

 ingly hispid. 



HAWAII: Southern slopes of j\Iauna Loa, in the forest of Naalehu, Kau, in 

 swamny jungle (terrestrial), elevation 4000 feet, flowering and fruiting January 

 9, 1912, Eock, type no. 10001 in the herbarium of the College of Hawaii; — 

 Owhyhee ad montem Kaah, fruiting June 1825, Alaerae ex herbarium Soc. Hort. 

 Lond. in the Gray Herbarium. 



Cyanea pilosa glabrifolia Rock The Indig. Trees Hawaii Isl., add. 508. r,'13. 



(Plates 40; 41.) 



Herbaceous, terrestrial, about 9-10 dm high, the stem strigosely hispid; leaves 



elliptical-oblong, acuminate at both ends, thin chartaceous. pale green above, 



paler underneath, 18-28 cm by 5-8 cm, on hirsute petioles of 2.5-3 cm, young 



leaves densely hispid underneath, old ones glabrous above, hispid along the 



