162 



intervpnint;'; corolla stroniily arcuate, 7-8 cm Ions', glossy, glabrous, dark pur- 

 plish outside, slit at the back, ouly wheu fully mature, three fourths its length, 

 the tive lobes of the corolla entirely connate; staminal column protruding, per- 

 fectly glabrous, pale, anthers glaucous, glabrous, the two lower only penicillate; 

 style black, the stigmatic hair encircling the stigma, the latter yellowish tinged 

 with purple ; Howers usually ten on a peduncle, crowded at the apex ; fruits 

 globose nearly 25 mm each way, dark purplish black, lociiles small, each con- 

 taining from six to twelve rather large whitish seeds; milky juice of the plant 

 yellowish. 



HAWAII : In the forest on the windward slope of Kilauea-]\Iauna Loa, near 

 Cllenwood at 22 miles, along the homestead road, elevation 2000 feet, flower buds. 

 August 27, 1917, W. Giffard no. 12802 in the herljarium of the College of Ha- 

 waii; — along the Volcano Road at 23 miles in wet forest, flowering and fruiting 

 (specimens) September 1st, 1917, Rock jind llnlm. tyi>c no. 12802-b in the her- 

 barium of the College of Hawaii. 



This very remarkable plant, which is closely related to Cyanea superlm 

 (Cham. 'I Gray, ditfers from it in the pubescent, deeply undulate leaves, which 

 are lobed at the base instead of being entire; in the glabrous, much shorter 

 peduncle, and in the glabrous deep purplish black flowers and fruits. Cyanea 

 superha occurs on the island of Oahu in the gulches of iMakaleha and ]Mt. Kaala, 

 while Cyanea Giffardii occurs on the .southernmost island of the group. It is 

 also miich statelier than Cyanea superha, as it reaches a height of thirty feet, 

 with a single crown of leaves at the apex. It grows in company with Antidesma 

 platyphi/Uuin ]\Iann, Lahordkt, Cyrtandra, Straussia liatraiiensis Gray, Stron- 

 gyloddii litcidum Seem., (Icnnontia parvlflora Gaud., Cihathim Mciiziesii Hook, 

 and ('. Cliaiiiissoi Kaulf.. the last two being the common tree ferns of the region. 



When the species was first discovered by Mr. W. M. Giffard, in whose honor 

 it is nnmeil. ()nl\- two plants were observed, one with large flower buds and the 

 other without flowers, the latter i)lant divided iiitci three branches at the apex 

 on account of an injury. 



]\Iatui'e ones (type specimen) with flowers and fruits were collected on the 

 road to the Volcano of Kilauea — Glenwood — at an elevation of 2400 feet. The 

 largest plant seen was thirty feet in height. 



The plants are difficult to see in the forest, as the trunk, which is usually- 

 covered partly with moss, does not branch and the crown of leaves is hidden 

 amongst the foliage of other trees. 



Ci/aiica Gi/f'ardil may be Hillebrand's var. fS of his Cyaiua arhorea (Mann) 

 Hillebr., from the woods of Hilo, Hawaii. The writer is w^ell acquainted with 

 Cyanea arhnrca and can only state that the new species is quite different 

 from the latter and that it comes much closer to Cyaiifa superba. Cyanea 

 arhorea has a much larger and denser crown of leaves, which are sessile and 

 linear-oblong; the peduncles are nuich longer and tln^ flowers are very thin, 

 narrow and slender, subereet and whitish to grav. 



