189 



MATH : Northwpstern slopes of jMt. Haleakala, iu dense rainforest, and along 

 streams, Waikanioi to Ilononianu, elevation 4000 feet, tiowering September 1910, 

 Rock no. 8513, type, in herbarium College of Iliiwaii. eo-type iu Herbarium Ber- 

 lin, Vienna and Gray Herbarium; — Olindn. tiowering October 1. 1916, A. S. 

 Ilitcheoek nos. 14904 and 14905, the latter (young leaves) in the U. S. National 

 Herbarium; — type locality, tiowering August 1918, Rock & Hashimoto no. 13133 

 in Herbarium Rock. 



('i/aiira acuh afi/lorn is foiuul in company with Ch niunil ia arlxircscciis. Ci/a- 

 nea hamati flora, Tcfraplasandra, etc. The young plants of this species are cov- 

 ered with spines throughout, while the trunk of old ones is prickly only at the 

 base. 



Hillebrand's var. /i nihizdcdhj.r of C. solciiocali/.r collected by Lydgate in 

 Haniakna, E. Maui, may be related to this species, though his jilant has only 

 peduncles of 2.5 cm. However, there is no material of Hillebrand's variety 

 e.xtant in the European herl3aria. 



Cyaiiea aculeatiflora belongs to the section palmaeformes notwithstanding that 

 it branches occasionally at the base, which fact seems to appear only when the 

 plant has been broken. 



Cyanea tritomantha .\. Gray Proceed. Am. Acad. \':14'). 1862. 



(Plates :19, .53, 99, 100.) 



Trunk 18-30 dm high, rough, tuberculate; leaves broadl\- oblong-lanceolate or 

 obovate, 37.5-70 cm long, 12.5-20 cm wide, on muricate petioles of 12.5-20 cm, 

 acuminate sinuate-dentate, suddenly contracting at the base, thick chartaceous, 

 pubescent underneath along the prominent nerves; peduncle 2.5-6.25 cm long, 

 thick tieshy, closely bracteate from near the base, somewhat nuiricate, bracts 

 linear oblong 14-42 nnn, the lower ones almost foliaceous, flowers 5-20 near the 

 apex of the peduncle on pedicels of 20-30 mm, bi-bracteate either immediately 

 under the calyx (as in Gray's specimen) or about, or below the middle; calyx 

 green, scabro-hispid or subglal.rous, the lobos green, linear lanceolate one-nerved, 

 acute as long as the tube or longer 16-25 mm ; corolla either dark purple or 

 greenish white with the apex dark purple, pubescent, falciform, 6-7.5 cm long, 

 6 mm wide, bluish grey inside, the lobes narrow linear, staminal column glab- 

 rous: anthers dark purple, glalirous, the lower only penieillate ; mature fruits 

 unknown. 



HAWAII: Windward side of ]\launa Kea, V. S. p]xploring Exped. in Gray 

 Herbarium; — Hilo, Lydgate in Herljarinm Berlin, and herbarium Bishop ;\Iu- 

 seum, Ilonolidu; — Kohala Mountains, Aiiril 1871, in Herbarium Berhn: — 

 southern slopes of JIauna Loa, forest region of Ililea, Kau, elevation 1500-3000 

 feet, tiowering January 1912, Rock nos. 10013 and 10013-a in herbarium Col- 

 lege of Hawaii, Gray Herbarium, Herbarium Botanic Garden New York, Nation. 

 Herbarium Sydney N. 8. W., Calif. Acad. Science Herbarium ; — Ililo, flowering 

 December 1912. Bro. Matthias Newell no. 10261 in herbarium College of Hawaii ; 

 — in dense forest from 29 miles near Volcano Kilauea to Kulani. Rock and Hashi- 

 moto, flowering August 15 1918, no. 13135 in herbarium College of Hawaii. 



Cijanca friloniiuitha, which the natives call Akii. is a very variable species. 

 The specimen in the Gray Herbarium consists of a single flower; the leaf is drawn 

 on the sheet. Hillebrand's specimen in the Berlin Herbarium possesses flower- 

 buds and immature fi-uits; the liracteoles which are (iresent immediately under 



