165 



Cyanea leptostegia A. (ira\- Proc. Am. Acail. \':149. 1862. 



Delissea Dricssertiaiia var. p'mnatiloba A. Gray Proc. Am. Acad. \';147. 1862. 



Dclissca coriacca Gray var. ? pinnatiloba A. Gray Bot. U. S. Expl. Exped. ined. 



(Plates 10, 28, 29, 31, 32, 81, 82.) 



Trunk smooth 10-14 m hiyh. densely covered in its upper portion with rhoni- 

 boidal leaf-sears: leaves of youny' plants siuuately lohed in the hiwer half, deeply 

 Inbed in the upjier. narrow lanceolate, sessile, with undulate niaryins in mature 

 plants, 75-100 cm long-, fi.o-8.5 cm wide; denticulate or subentire, glafu'ous on 

 both surfaces, .shining above, chartaceons, the prominent midrib hollow; peduncle 

 4-6 cm. slender, naked behiw, many tiowered at the apex, 12-25 flowers in a 

 crowded cluster, on pedicels of 1-1.5 cm ; bracts linear, 24 mm ; bractlet 12 mm ; 

 calyx glabrous, the tube cylindrical, somewhat produced beyond the ovary, 15-18 

 mm, the tiliform-linear erect lobes 5-5.5 cm long. 1 mm or less broad; corolla 

 reddish to dark purple, glabrous, semi-erect and slender, 5 em long, 3 mm widi^. 

 thin, W'ith a long dorsal slit; staminal colunui and anthers glabrous; berry ovoid. 

 20-35 mm long, 8-12 mm wide, crowned by tlie long calycine lo])es. 



KAUAI: Upper edge of the forest near the tabular summit of Kauai. U. S. 

 Expl. Exped. in. Gray Herbarium; — ilann and Brigham no. 575; — Walder von 

 Halemauu, Wawra no 2116 in Herbarium Vienna; — Waimea leg. Knudsen in 

 Herbarium Hillebrand, Herbarium Berlin; — tyiie locality. September 9. Heller 

 no. 2793 ; — forests of Ilalemanu and Kaholuamano flowering and fruiting, Sep- 

 tember, Rock no. 5818 in herbarium College of Hawaii and Gray Herbarium; — 

 same locality fruiting October 24, 1911, Rock no. 10256 and 9016 (the latter 

 young leaves) in the herbarium of the College of Hawaii; — Kaholuamano, A. S. 

 Hitchcock, October 20, 1916. no. 15359 in U. S. National Herbarium. 



(!)ne of tlie most remarkable of Cyaneas. It is the only species that reaches 

 a height of forty feet. The writer observed a specimen at Opaiwela, near Ka- 

 holuamano. of fully that height. The young plants, like a good many of the 

 species of the section palmae formes, have deeply lobed leaves. Asa Gray's 

 Delissea coriacea var. jiiimal ilnliii. «hich the writer examined, is none other 

 than a young plant of ('. leptostegia. The .species is more or less peculiar to 

 the outskirts of the forest and is not found in the interior of the island. It 

 grows in company wdth Antidcsma platijplnjHum var., Xijlosma hawaiiense, Maba 

 sandwieensis var., Rockia sandwicensis, Cyanea spatliulata and Cyanea hirtella. 

 Numerous species of caterpillars (probably Heterocrossa) feed on the fruits and 

 •withered flowers. Tlie native name of the species is HiilialiKi. The milky .sap is 

 of a canary yellow. 



Cyanea arborea (H. Alann) Ilillebr. Mora Haw. Isl. 261. 1888. 

 Delissea arborea H. Mann Proc. Am. Acad. Ml :180, no. 26.^. 1868. 

 Delissea coriacea Gray var. Gray in Proc. Am. Acad. V:148. 1862. 

 Cyanea loiujifolia Heller in Minnes. Bot. Stud. IX :909. 1897. 



(Plates 12, ,'i7, S3, 84.) 



Trmik 4-S m high, smooth, leaves sessile, oblaneeolate. 66-88 cm long, 6-12 

 . cm wide, shortly acuminate, apicnlate. gradually luiiTowing toward the base, 

 faintly dentate, subentire and wavy towards the base, glabrous and shining above, 

 slightly pubescent underneath, especially along the very prominent midrib, 

 chartaceous to coriaceous, midrib impressed above, reddish; peduncle slender, 

 but stiff, 15-32 cm long, almost naked below, closely many-flowered in the upper 

 fourth; the pedicels short, 4-8 mm; bracts 3-5 mm, bractlets 1 mm; calyx subglo- 

 bose, glabrous, shortly toothed, the tube 1 cm, the calycine teeth 1 mm ; corolla 

 slender moderately curved or subereet 4-5 cm long, 4 mm wide, glabrous, cream- 

 colored to bluish gra.v, rather thin with a deep dorsal slit and connivent lobes; 

 staminal column glabrous, antiiers glabrous, the two lower l)eard?d : stiumatic 

 lobes tufted with whitish hair underni'ath ; berry globose, faintly ri'ilied. 10-12 

 mm in diameter. 



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