( aryopteris VEKBENACEAh Verbena 



4. Caryopteris Bunge Bluebeard HIS (Yu Shu) 



Small deciduous shrubs or herbs with opposite simple lvs. and 5-merous lis. in 

 axillary cymes; calyx somewhat enlarged in fr.; corolla with a short cylindric tube; 

 one corolla lobe larger and fringed; stamens 4, exserted, 2 of them longer; style 

 slender, 2-cleft: fr. dry, separating into 4 somewhat ivinged nutlets. About 10 species, 

 in eastern Asia; 6 or more in China. (Greek: karyon, nut; and pteron, wing.) 



Key to the Species 



Fls. in dense cymes, without bracteoles; lower corolla lobe toothed or 



fimbriate 1 • C. ivcana 



Fls. solitary with short linear bracteoles; lower corolla lobe entire.. 2. C. nepetaefolia 



1 . Caryopteris incana (Thunb. ex Houtt.) Miq. Bluebeard $| (Yu; Foul-smelling Herb) 

 (R.M.806). Shrub, to 2.5 m.; fls. lavender, blue, IX-X. Japan, eastern and northern 

 China; locally in An., Che., Hun., Hup., Ki. Brushland. 



2. Caryopteris nepetaefolia Maxim. (P'ei 173). Herb, to lm.; fls. lavender, IV-VI. 

 China; locally in An., Che., Ku. Brushland. 



5. Vitex Linn. MMM (Huang Chin Shu) 



Shrubs or trees, sometimes prostrate, with opposite digitate Ivs. (rarely reduced 

 to one 1ft.) fls. pedicelled, small, 5-merous, white, blue or yellow, in terminal and 

 axillary panicled cymes; stamens 4, usually exserted: fr. a small drupe, dry at 

 maturity, with a 4-celled stone, surrounded by a somewhat enlarged persistent calyx. 

 About 60 species, in most warm countries; 10 in China. (Old name of V. agnus- 

 castus.) 



Key to the Species 



a. Lvs. digitate, 3-5-foliolate; lfts. oblong to lanceolate, 

 1-14 cm. long. 

 Lfts. grayish tomentose beneath. 



Lfts. entire or with a few teeth 1 . V. vegundo 



Lfts. incisely serrate or nearly pinnatifid la. V. negundo var. heterophylla 



Lfts. green on both surfaces lb. V. negundo var. cannabifolia 



aa. Lvs. simple, obovate to oval, 2-6 cm. long, entire, 



white tomentulose beneath 2 . V. rottindifolia 



1. Vitex negundo Linn. |'|fi] (Huang Chin; Yellow Bramble) (R.M.805). Shrub or 

 tree, to 5 m.; fls. bluish lavender, VII-VIII. India, China, Korea; locally in An., 

 Che., Hon., Hup., Ki., Ku. Woodland, brushland. Fig. 315. 



la. Vitex negundo Linn. var. heterophylla (Franch.) Rehd. (V. negundo Linn. var. 



incisa (Lam.) C.B.Clarke) (R.M.805; R.B.585). An., Che., Ki., Ku. 

 lb. Vitex negundo Linn. var. cannabifolia (S. & Z.) Hand.-Mazz. (V. cannabifolia 



Sieb. & Zucc.) $fc#iJ (Mu Chin; Male Bramble) (P'ei 108). An., Ki., Ku. 



2. Vitex rotundifolia Linn. f. (V. trifolia Linn. var. unifoliolata Schauer) (R.M.902). 

 Prostrate or ascending woody vine, to lm., fls. blue, VI-VIII. India to Japan, 

 Malaysia, Polynesia; locally in Che., Ku. Sandy seashores. 



6. Verbena Linn. Vervain WM^-U (Ma Pien Ts'ao Shu) 

 Herbs or subshrubs, mostly with opposite simple rarely entire lvs. and variously- 

 colored sessile 5-merous fls. in terminal often clustered spikes: calyx 5-angled or -ribbed: 

 corolla tube sometimes curved, the limb somewhat 2-lipped: stamens 4, included: 



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