Compositae. 
KEY TO THE GENERA, 
Flowerheads small, yellowish: 
stiches sit fertil ct a 
of i 
pRVOlUcTS In one fow 1600. 54 65 es we Dubautia 
Be ts of inv ane CONNEC! A. cea esis thw Mei eee a ene Cee Raillardia 
Flower ‘ious large, two inches or more, brownish yellow: 
Style of all florets ontite Or shortly Witentetes, 675i see ek vc Hesperomannia 
DUBAUTIA Gaud. 
Flowerheads a discoid, all igibie sgptcta ahaa and fertile. Involucre 
turbinate, with 10 equal bracts in one row; receptacle naked or paleaceous, the 
paleae comresponding in number to the aner florets; corolla tubular with a 5-fid limb; 
anthers purple, rtly appendiculate; style- -branches revolute; achenes hispid, 4 to 5 
ribbed, with Theat cuties ciliate rays in a single row.—Shrubs or pe trees with op- 
Bea or ternate leaves which are either sessile or subsessile, the leaves are paralle\ 
nerved, with a slightly branching middle nerve, and remind one of the ib of species of 
Plantago or Bupleurum. Inflorescence terminal, paniculate or corymbos 
The genus Dubautia is strictly Hawaiian and is closely allied to the genus 
Raillardia, which is also peculiar to the Hawaiian Islands. It consists of seven 
species, only two of which attain the height which entitle them to be ealled trees ; 
the remaining five are shrubs. The Dubautiae or Naenae, as the Hawaiians term 
these plants, are peculiar to the wet regions of the middle forest zone, and reach 
their best development on the Island of Kauai, where five species are found. 
Dubautia plantaginea Gaud. 
Naenae. 
(Plate 211.) 
DUBAUTIA PLANTAGINEA Gaud. Bot. Voy. Uranie a. 469. pl. 84;—Less in Lin- 
naea VI. (1831) 162; Bitar fees Suds, (1836 e - ae ay Proc. Am. Ac. 
V. (1862) 134; ;—Wawr a in a (1873) 163;-—— ae is a oot fi 222; —_ 
Hoffmann in Engl. et Pran e paren: IV. 5. (1889) 348. a 120. 1 Cas 
Til. Fl. Ins. Mar. Pae. VI. (1890) 212;—Heller in Minnes. Bot, ie at 1X. 
(1897) 918. 
Leaves opposite, oe grt pas 10 to 20 em x 8 to 20 mm, acute gradually contracting at 
both ends, claspi eels the pled base, entire or remotely denticulate in th _upper 
noe “strongly 7 nates seers pani earner pyramidal, 15 to 25 em long, projecting 
bey ng iid with hori oneal “a nches, the lowest 5 to 7.5 em long, the ultimate 
pedicels re = 2 mm, racemosely arranged; heads cylindrical, florets 7 to 10, involucral 
bracts 7 to receptacle mostly naked; corolla orange colored, exserted; style branches 
rev aie ee rays ee subulate, with upright cilia 
The Naenae is a small tree of 10 to 16 feet in helen with a short trunk of.a 
few inches in diameter. The branches are very slender, spreading, and bear at 
their ends long, lanceolate, bright-green opposite leaves, which are strongly 7 to 
13 nerved. It is a strikingly handsome tree when in full flower, which is from 
about July to August, varying, of course, according to locality. The small yellow 
flowers are borne on a large pyramidal panicle which projects beyond the leaves, 
about ten inches or more in length, drooping or standing erect. The corolla is 
orange-colored with a slender tube which dilates into a bell-shaped (campanu- 
late) limb with reflexed lobes. The flowers have the odor of bee ’s-wax, and are 
often purplish instead of yellow. 
499 
