LiLIACEAE 301 



24. DIANELLA Lam. Kikyo-ran Zoku 



Evergreen perennial herbs from stout branching rhizomes; leaves linear, 2-ranked, radical, subcoriaceous, flat, with a raised 

 costa beneath; scapes relatively tall, with few, short, linear leaves; inflorescence paniculate, loosely branched, bearing many 

 short terminal racemes, the bracts small, the pedicels jointed at top; flowers blue, sometimes pale yellow, relatively small, 

 nodding, the tepals free, narrowly oblong, 3- to 7-nerved; stamens 6, die filaments usually partially thickened, the anthers 

 opening by terminal pores; ovary 3-locular, the ovules 3-8 in each locule; style filiform, the stigma small; fruit a berry, sub- 

 globose, blue; seeds ovate, often flattened, lustrous, black. About 20 species, from India to the Pacific Islands, also in n. 



Australia and Madagascar. 



1. Dianella ensifolia (L.) DC. Dracaena ensijolia L.; with few small loose leaves; panicle 15-30 cm. long, loosely 



Dianella nemorosa Lam. Kikyo-ran. Evergreen gla- branched, the flowers on upper part, the pedicels arcuate, 7-15 



brous herb from stout creeping rhizomes, the old decayed leaf mm. long, the bracts small, membranous, the tepals spreading, 



sheaths covering the base; leaves 50-60 cm. long, 1-2 cm. blue, about 6 mm. long, narrowly oblong; filaments relatively 



wide, rather firm and lustrous above, broadly linear, gradually stout above, geniculate near the middle; berry ovoid-globose 



tapering, the tip obtuse, also gradually narrowed and loosely to globose, blue-purple, about 4 mm. in diameter. Apr.- 



folded below to a densely imbricated sheath, the midrib im- Aug. Near seashores; Honshu (Kii Prov.), Shikoku, Kyu- 



pressed above and keeled beneath; scapes 50-100 cm. long, shu. — — Ryukyus, Formosa, and Malaysia. 



25. POLYGONATUM Adans. Amadokoro Zoku 



Rhizomes thickened, creeping; stems simple, leafy; leaves alternate or rarely verticillate, entire, lanceolate to broadly el- 

 liptic, many-nerved; inflorescence an axillary cyme sometimes reduced to a fascicle or single flower, the pedicels jointed below 

 the flower, the bracts sometimes developed; flowers pendulous and tubular, the tepals 6, tubular-connate; filaments adnate to 

 the corolla-tube, filiform or flattened, the anthers oblong to lanceolate, bifid at base, introrse; ovary 3-locular, the ovules 4-6 in 



each locule; style slender, the stigma small; fruit a globose few-seeded berry. About 30 to 40 species, in the temperate regions 



of the N. Hemisphere. 



lA. Bracts absent. 



2A. Filaments with dense multicellular long hairs; stems terete, finely striate; leaves smooth, usually whitish beneath; peduncles 



elongate, horizontally spreading; rhizomes with thickened internodes 1. P. lasianthtim 



2B. Filaments smooth, glabrous or papillose-tuberculate; peduncles strongly arcuate-recurved from the base. 



3A. Stems angled except at base, erect or ascending above; rhizomes cylindrical, long-creeping, with long internodes. 



4A. Stems erect, 15-30 cm. long; filaments, leaves on lower side, and the leaf-margins papillose; rhizomes 2-4 mm. in diameter; 



leaves pale green beneath 2. P. humile 



4B. Stems ascending above, 30—100 cm. long; filaments and leaves smooth or nearly so; rhizomes 5-20 mm. in diameter; leaves 



glaucous beneath 3. P. odoratum 



3B. Stems nearly terete, prominently arcuate-ascending above; rhizomes with short thickened internodes, submoniliform; perianth- 

 tube slightly elongate and stipitate at the base. 

 5A. Flowers 25-35 mm. long, pale green; leaves glaucescent beneath, smooth; stems terete; filaments 7-10 ram. long, much thickened 



at base, papillose except at apex; anthers 4.5-5.5 mm. long 4. P. macrant hum 



5B. Flowers 18-23 (-25) mm. long; leaves usually papillose on nerves beneath; filaments thickened below, smooth or nearly so, 

 4.5—7 mm. long; anthers 2.5-3 mm. long. 



6A. Leaves lanceolate-ovate to narrowly ovate, acute; filaments smooth 5. P. trichosanthum 



6B. Leaves linear-lanceolate to oblong-lanceolate 6. P. jalcatum 



IB. Bracts distinct. 



7A. Bracts membranous, 1-nerved, as long as to shorter than the pedicels; peduncles 1.5-3 cm. long; flowers greenish, 22-25 mm. long; 



perianth pubescent inside 7. P. inflaltim 



7B. Bracts herbaceous, several- to many-nerved, much longer than the pedicels; peduncles 5-15(-20) mm. long; flowers 12-25 mm. 

 long; perianth-tube whitish to pale yellow-green, glabrous. 

 8A. Peduncles, pedicels, bracts, and frequently the underside of leaves prominently papillose; flowers yellow-green, about 13 mm. 



long; pistil shorter than the stamens; style twice as long as the ovary 8. P. cryplanlhum 



8B. Peduncles and pedicels smooth; bracts and leaves beneath rarely papillose; flowers whitish or pale green, 20-25 mm. long; 

 pistil longer than the stamens; style 2.5-4 times as long as the ovary. 

 9A. Bracts lanceolate, usually papillose on the margin, usually inserted at or above the middle on the pedicels. 



lOA. Filaments glabrous 9. P. desotilavyi var. yezoense 



lOB. Filaments mealy-puberulent 10. P. miserum 



9B. Bracts ovate, smooth, inserted at base of pedicels 11. P. involiicratiim 



1. Pol)^gonatum lasianthum Maxim. MnrAMA-NARUKo- common peduncle; flowers white, the tips greenish, 15-18 mm. 

 YURI. Slender herbaceous perennial from creeping knotty long, sometimes with a very short stipe at the base. May- 

 rhizomes 3-8 mm. in diameter; stems 30-60 cm. long, ascend- June. Thin woods, low mountains and hills; Hokkaido, Hon- 

 ing above, weakly striate; leaves firm, narrowly oblong to shu, Shikoku, Kyushu. Forma amabile (Yatabe) Makino. 



broadly elliptic, short-petiolate, smooth, often glaucescent be- P. amabile Yatabe Hime-naruko-yuri. Leaves with pur- 



neath, thinly chartaceous; peduncles 1-2 cm. long, I- to 3- plish variegation, 

 flowered, horizontally spreading, the pedicels shorter than the 



