187 



Cyanea hamatiflora Rock The Indig. Trees Hawaii. Isl. Add. 510. 1913. 



(Plates :_!6, 96, 97.) 

 Plant 3-8 m hiuli, luinnned, glabrous, erect not brauehini;- ; leaves broadly 

 lanceolate, somewhat acute, broadly sessile at the base, 60-70 cm long, lO-l-i cm 

 wide, puberulous above, pubescent underneath, irregidarly dentate with callous 

 teeth ; niidi'il) thick fleshy, red : inflorescence axillary, hidden by the leaves which 

 stand at riglit angles to the stem, pediuicle 1.5-2 cm, bracteate at the apex and 

 at the middle of peduncle ; bracts lanceolate acuminate pultescent, with a prom- 

 inent median nerve, pedicels 5-6 mm with linear-lanceolate bracteoles at their 

 base; calyx ovate, green, 1.5 cm high, 6-7 mm wide; lobes of irregular length, 

 two uisually shorter, lanceolate, obtuse 12-18 mm long, 4 mm wide; corolla pur- 

 plish to magenta red, the dorsal slit extending more than one third of its length, 

 lobes sharply curved at the apex only, thick fleshy in texture and somewhat hir- 

 sute, staminal column glalirous, with a patch of purjilish hair at the base; 

 anthers sparingly hispid along the sutures, tlie two lower oidy bearded; berry 

 obovate, dark purplish-red, 10-12 riblied, crowned by the long calyeine lobes, 

 4 cm long. 2.5 cm wide, fruit flcsli i)urple, seeds dark l)rown shining. 



MAUI : Slopes of Mt. Haleakala, in dense rainforest between Waikamoi and 

 Honomanu, also conniion on the crater of Puukakai in the same region, elevation 

 4000-4500 feet, flowering September 1910, Rock (type) no. 8514 in herbarium 

 College of Hawaii, co-types in Herbarium Berlin, and Vienna and Gray Her- 

 barium; — same locality, fruiting ]\larch 1912, Rock; — type locality, flowering 

 August 1918, Rock & Hashimoto no. 13132 in Herbarium Rock. 



The plant is easily distinguished from the other Cyaneas by the broad, sessile, 

 light green leaves wliich stand out horizontally. The whole inflorescence of this 

 species exudes a very viscous substance, especially the young flowerbuds, which 

 adhere to the paper in the herbarium. 



The species is peculiar to the rainforests of Hamakua district, East Maui, 

 where it grows in company with Cyanea aculeatiflora, Cyanea ferox horrida, 

 Clennontia fuhrrciilafa. Clcnnontia arborescens, Cyanea macrostegia, Ruhvs, 

 Stenogyne. PJtyUostegia. Duhautia, Pelea, Crytandra mauiensis, Tetraplasandra 

 meiandra var., etc. It is one of the most robust species, reaching a height of 

 about twenty-five feet, with a trunk of five inches or more in diameter. 



Cyanea aculeatiflora Rock The Indig. Trees Hawaii. Isl. Add. 309. l')13. 



(Plates 34, .3.5, 55, 98.) 



Plant 3-7 m tall, single stemmed or occasionally lu-anching not far above 

 the ground, covered with leaf-scars, especially in the upper portion; leaves large, 

 40-60 cm long. 10-20 cm wide, thick and stiff, dark green above, lighter under- 

 neath, the midrib as well as the 15 em long fleshy petiole muricate ; the upper 

 surface muricate at the angles of the veins, densely tomentose-hispid underneath; 

 inflorescence muricate throughout with aculeate tubercles; inflorescence racemose 

 in the axils of the leaves; peduncle 6-10 cm with large foliaceous bracts of 3-4 

 cm, scattered along its entire length, the pedicels 1-1.5 cm; calyx tube oblong 

 2 cm. the oblong, obtuse, linear, muricate lobes 2.5 cm long, 0.5 cm wide; corolla 

 dark purple, curved, covered with yellowish spines, the inner side of the lobes 

 smooth, bluish-white, spreading, densely- muricate on the outside; staminal column 

 glabrous, purple, longer than the 5 cm long tube of the corolla ; anthers dark 

 purple, glabrous, the two lower bearded only; style thickening towards the 

 shortly 1wo-lobed hirsute stigma; fruit unknown. 



