RUBIACEAE 823 



3. ADINA Salisb. Tani-watari-no-ki Zoku 



Trees or shrubs; leaves opposite, petiolate; stipules deciduous; flower-heads solitary or in peduncled panicles or racemes, brac- 

 teate or ebractcate, the receptacles or shortened axis hairy; flowers many, small, with scalelike bracteoles at base; calyx con- 

 nate, the tube angled, the lobes 5, sometimes deciduous; corolla tubular, elongate, the lobes 5, valvate in bud; stamens 5, 

 inserted on the corolla-throat, the disc cup-shaped; ovary 2-locular; st>'le elongate, the stigma clavate or capitate; ovules many; 



ca^ules septicidal, 2-valved, the valves inflexed, opening internally; seeds oblong, winged on each side. Several species, in the 



Tropics of Asia and America. 



lA. Leaves evergreen, broadly oblanceolate, acute at base, the petioles 4-10 mm. long; heads solitary, axillary, slenderly pedunculate. 



I. A. pilulijera 



IB. Leaves deciduous, ovate, rounded to shallowly cordate at base, the petioles 3-5 cm. long; heads few in a terminal raceme, on thick and 



rather short peduncles 2. A. racemosa 



1. Adina pilulifera (Lam.) Franch. Nauclea orientalis 2. Adina racemosa (Sieb. & Zucc.) Miq. Nauclea race- 



L., pro parte; Cephalanthiis pilulifera Lam.; A. globiflora niosa Sieb. & Zucc. Hetsuka-nigaki, Ha-nigaki. De- 



Salisb.; A. globiflora var. macrophylla Nakai; N. nipponica ciduous tree with rather stout glabrous branches; leaves rather 



Masam. Tani-watari-no-ki. Large, slender, much- coriaceous, ovate or oblong-ovate, 8-12 cm. long, 4-7 cm. wide, 



branched evergreen shrub or small tree, puberulent on young abruptly short-acuminate, rounded or shallowly cordate at 



branchlets and inflorescence; leaves somewhat coriaceous, base, with about 10 pairs of prominent lateral nerves beneath, 



broadly oblanceolate or narrowly oblong, 5-10 cm. long, 2-3.5 lustrous and glabrous above, short-pubescent on nerves be- 



cm. wide, acuminate widi an obtuse tip, acute at base, with neath while young, long-petiolate; stipules connate; inflores- 



7-9 pairs of slender lateral nerves, the petioles 4-10 mm. long; cence a several-headed raceme, die heads about 15 mm. across, 



stipules 4, free, lanceolate, 3-6 mm. long, acuminate, caducous; the peduncles 1.5-2 times as long as the head; corolla about 



peduncles 4-6 cm. long, slender, the heads about 12 mm. 7 mm. long, tubular, pale yellow, puberulent externally; fruit 



across; corolla pale yellow, tubular, about 5 mm. long, gla- cuneate at base, about 3 mm. long, with minute calyx-teeth 



brous outside; capsules narrowly cuneate, about 2.5 mm. long, at apex. July-Aug. Shikoku, Kyushu. Ryukyus, For- 



with broadly linear persistent calj-x-lobes at apex. Aug.- mosa, and China. 



Oct. Kyushu (s. distr. and Amakusa Isl.). China and 



Indochina. 



4. UNCARLA Schreb. Kagi-katsura Zoku 



Scandent woody plants, with curved spiny short spurs; leaves opposite, stipulate; heads axillary, peduncled, usually solitary; 

 flowers yellowish, usually pilose, sessile or pedicelled, the bracteoles absent or minute; calyx-tube fusiform, the lobes 5; corolla- 

 tube elongate, narrow, the lobes valvate in bud; anthers 2-spinulose at base; disc obscure; ovary fusiform, 2-locular; style long 

 and exserted, the stigma capitate; ovules many; capsules 2-locuIar, septicidal, 2-valved, bifid; seeds many, long-winged on each 

 side. More than 30 species, mainly in Malaysia and e. India, few in e. Asia, Africa, and S. America. 



1. Uncaria rhynchophylla (Miq.) Miq. Nauclea rhyn- tary in axils, thickened at base, gently recurved toward tip; 

 chophylla Miq.; Ourouparia rhynchophylla (Miq.) Matsum. heads many-flowered, about 2 cm. across, solitary, terminal and 

 Kagi-k.\tsura, Kagi-kazura. Fig. 16. Plant with horizontally axillary, the peduncles 2-3 cm. long; flowers pale green, the 

 spreading branches; leaves oblong or ovate, 5-12 cm. long, 3-7 tube glabrous outside, 7-8 mm. long; fruit fusiform, slightly 

 cm. wide, abruptly acuminate, rounded or abruptly acute at pilose, about 4.5 mm. long, sessile, with persistent short calyx- 

 base, with 4 or 5 pairs of lateral nerves, lustrous and green teeth at apex; seeds minute, long wing-tipped. July. 



above, glaucous beneath, the petioles about 1 cm. long; stipules Woods; Honshu (Awa Prov. and wcstw.), Shikoku, Kyushu, 

 nearly free, 4 on a node, broadly linear, caducous; spines soli- 



5. MUSSAENDA L. Konron-ka Zoku 



Plants woody, rarely herbaceous, often slighdy scandent; leaves opposite, sometimes ternate, rather large, stipulate; flowers 

 small, yellowish, many, forming a terminal cyme, pedicelled, the bracts and bracteoles deciduous; caly.x-lobes 5, the tube oblong 

 or obconic, the outer calyx-segment of some outer flowers becoming large and petaloid, colored or white; corolla infundibuli- 

 form, the tube long, lobes 5, valvate in bud; ovary 2-locular; style elongate, the stigma 2-lobed; ovules many; fruit usually 

 fleshy; seeds many, small. About 50 species, in the tropical regions of Asia, Africa, and die Pacific Islands. 



W. Leaves narrowly oblong, 3-4 cm. wide, acuminate; stipules free; inflorescence slighdy pubescent; bracts and calyx-lobes broadly 

 linear LA/, parviflora 



IB. Leaves broadly ovate, 6-12 cm. wide, cuspidate; stipules connate; inflorescence prominently puberulent; bracts and calyx-lobes lan- 

 ceolate 2. M. shikfikj'""' 



1. Mussaenda parviflora Miq. Konron-ka. Ever- lateral nerves, die petioles about 1 cm. long; stipules 4-7 mm. 



green scandent shrub, sparingly appressed-pilose with coarse long; inflorescence rather many-flowered; calyx-lobes 5-6 mm. 



hairs; leaves oblong or narrowly so, 8-13 cm. long, 3— 4(-5) long, as long as or shorter than the deciduous bract, tlic peta- 



cm. wide, acuminate, acute at base, with about 5 pairs of loid lobe broadly ovate, 3-4 cm. long, white, stipitate; corolla 



