Leguminosae 561 



lA. Stems with downwardly curved, short, white hairs; leaves apprcsscd-pilose on midrib and margin, nearly all alike, the leaflets obovatc- 

 oblong to narrowly oblong, obtuse or subacute; bracts and bracteoles 5- to 7-nerved; calyx loosely short-pilose; legumes slightly 

 longer than the calyx, abruptly acute I. K. striata 



IB. Stems with upwardly appressed short hairs; leaflets with obliquely spreading hairs on the midrib beneath and on margin; lower 

 leaves spreading, the leaflets obovate, usually retuse, the upper leaves appressed to the stems or subcrcct; bracts and bracteoles 

 1- to 3-nerved; calyx glabrous; legumes twice as long as the calyx or longer, rounded at apex 2. K. stipulacea 



1. Kummerowia striata (Thunb.) Schindl. Hedysarum Hokkaido, Honshu, Shikoku, Kyushu; common. Man- 



striatiim Thunb.; Lespedeza striata (Thunb.) Hook. & Arn.; churia, China, Korea, Ryukyus, and Formosa; naturalized in 



Microlespedeza striata (Thunb.) Makino; M. makjnoi C. N. America. 



Tanaka Yahazu-so. Much-branched, erect annual with 2. Kummerowia stipulacea (Maxim.) Makino. Lespe- 



slender branches; stipules narrowly ovate, few-nerved, 5-8 deza stipulacea Maxim.; Microlespedeza stipulacea (Maxim.) 



mm. long, erect, persistent, pale brown; leaves with very Makino; L. striata var. stipulacea (Maxim.) Deb.; L. striata 



short petioles, the leaflets thin, 10-15 mm. long, 5-8 mm. forma adpressa Matsum.; L. striata Maxim, pro parte, non 



wide; chasmogamic flowers about 5 mm. long, reddish purple. Hook. & Arn. Maruba-yahazu-s6. Resembles the preced- 



the bracteoles as long as the calyx-tube, ovate, subobtuse; calyx ing; stems more profusely branched; leaves of 2 forms, the 

 3-3.5 mm. long, 5-lobed, the lobes ovate, subacute; calyx of lower spreading, the upper nearly erect or appressed, rather 

 cleistogamic flowers similar to those of the chasmogamic; densely arranged. Aug.-Oct. Waste grounds and road- 

 legumes flat, nearly orbicular, about 3.5 mm. long, with short sides; Honshu, Kyushu; common. Ussuri, n. China, Korea, 



appressed scattered hairs. Waste ground and roadsides; and Manchuria. 



16. DESMODIUM Desv. Nusubito-hagi Zoku 



Herbs or shrubs, rarely small trees; leaves usually with free, linear or subulate stipules, the leaflets 1-7, pinnate, stipellate; 

 flowers reddish purple or white, usually small, on loose, simple or compound racemes, the bracts various, the bracteoles some- 

 times present; calyx 5-toothed; filaments often connate into a tube; legumes sessile or long-stiped, flat, usually indehiscent, the 

 joints smooth, glabrous or hairy. About 180 species, in the warmer regions of the world. 



lA. Calyx deeply 5-Iobed, the segments or lobes much longer than wide; legumes sessile, shallowly constricted between the joints; flowers 

 3-5 mm. long; leaflets 3. 

 2A. Flowers bractcolate; legumes with rusty pubescence; joints narrowly oblong, about 13 mm. long; erect shrub, horizontally spread- 

 ing on upper part; terminal leaflets 7-12 cm. long 1. D. caudatum 



2B. Flowers without bracteoles; legumes with pale minute pubescence; joints broadly elliptic, 3-4 mm. long; decumbent or prostrate, 

 herbaceous or suffrutescent; terminal leaflets less than 3 cm. long. 



3A. Leaflets 5-15 mm. long; racemes 5- to 10-flowered 2. D. microphyllum 



3B. Leaflets 2.5-3 cm. long; racemes many-flowered 3. D. hcterocarpon 



IB. Calyx shallowly lobed with depressed deltoid teeth shorter than wide; legumes stiped, prominently constricted on lower side between 

 the semi-obovate joints; flowers 3-10 mm. long; leaflets 3-7. 



4A. Leaflets 7, sometimes 5; flowers 8-10 mm. long; joints of legumes 12-15 mm. long 4. D. oldhamii 



4B. Leaflets always 3. 



5A. Principal lateral nerves of leaflets not reaching margin; stipules deltoid-lanceolate, 2-4 mm. wide at base, semipcrsistcnt; flowers 

 5-7 mm. long. 

 6A. Leaflets ovate; terminal leaflets only slighdy larger than the lateral; filament-tube 5-6 mm. long; filament-tube, 10-18 mm. long, 

 much longer than the stipe of legume. 



7A. Leaflets with raised, puberulous veinlets beneath; joints of legume 8-13 mm. long 5. D. laxum 



73. Leaflets nearly glabrous, without raised veinlets beneath; joints of legume 13-16 mm. long 6. D. Uptopus 



6B. Leaflets oblong-ovate to broadly lanceolate; terminal leaflets usually much larger than the lateral; filament-tube about 4 mm. 



long, only slightly shorter than the stipe of legume 7. D. latcrale 



53. Principal lateral nerves of leaflets reaching margin; stipules subulate, usually not exceeding 1 mm. wide at base, commonly early 

 deciduous; flowers 3-4 mm. long. 

 Z\. Leaflets broadest below the middle, ovate to oblong-ovate. 



9A. Stipe of legume short, 1-3 mm. long; leaves sparse on the stem 8. D. oxyphyllum 



9B. Stipe of legume 5-7 mm. long; leaves approximate below middle of stem 9. D. jallax 



83. Leaflets broadest at or above the middle, broadly obovate; leaves sparse on stem 10. D. podocarpum 



1. Desmodium caudatum (Thunb.) DC. Hedysarum mm. long, 7-8 mm. wide, with rusty-brown uncinate hairs. 



caudatum Thunb.; H. laburnifolium Poir.; Catenaria laburni- Aug.-Sept. Woods; Honshu (Suruga Prov. and Chugoku 



folia (Poir.) Benth.; D. laburnifolium (Vo\r.) DC; C.caudata Distr.), Shikoku, Kyushu. s. Korea, Ryukyus, Formosa, 



(Thunb.) Schindl. Miso-naoshi. Short-pilose shrub with China to India, and Malaysia. 



ascending to spreading branches and branchlets; sdpules subu- 2. Desmodium microphyllum (Thunb.) DC. Hcdy- 



late; pedoles 3-5 cm. long, slightly flattened and without sarum microphyllum Thunb.; D. parvijolium DC. Hime- 



groove on upper side; leaflets broadly lanceolate, 7-12 cm. no-h.\gi. Decumbent, herbaceous or suffrutescent, with 

 long, acute, the lateral ones slightly smaller, deep green on slender, elongate, loosely branched stems; stipules thinly mem- 

 upper side, slightly glaucous and with slightly raised veinlets branous, lanceolate; leaflets elliptic, 5-10 mm. long, the lateral 

 beneath; racemes terminal and axillary, in leafy panicles, the ones slightly smaller, loosely appressed-pilose beneath; racemes 

 bracteoles lanceolate, subtending the calyx, 0.5-0.8 mm. long; very loosely few-flowered, 1-5 cm. long, the axis flexuous, 

 flowers 5-6 mm. long; legumes 5-7 cm. long, flat, the joints slender, the pedicels slender, 5-8 mm. long, with scattered 

 4-6, slightly contracted at each end, narrowly oblong, 8-13 spreading glandular hairs, the bracts similar to the stipules. 



