Verbena VERBENACEAE-LABIATAE Lantana 



ovary 4-celled: jr. dry, enclosed in the calyx, separating into 4 nutlets. About 100 

 species, in America and the Mediterranean region; 2 in China. (The Latin name of 

 V. officinalis.) 



Key to the Species 



Infl. a convex or flattish corymb 1 . V. hybrida 



Infl. an elongated slender spike 2 . V. officinalis 



1. Verbena hybrida Voss Common Garden Verbena ^AW (Mei Jen Ying) (B.M.841). 

 Decumbent herb; lis. various, VI-VIII. Hybrid origin; locally in Ku. Planted, 

 ornamental. 



2. Verbena officinalis Linn. European Vervain Hfg#: < Ma Pien Ts'ao; Horse-whip 

 Herb) (G.M.1210). Erect herb, to Ira.; fls. bluish purple, V-VII. Introduced from 

 Europe; locally in An., KL, Ku. Roadside weed. Fig. 316. 



7. Lantana Linn. M&ftM (Ma Ying Tan Shu) 

 Erect or half-climbing shrubs, usually prickly, pubescent or scabrous, with simple 

 crenate lvs. and sessile 4-5-merous fls. in axillary spike-like heads; corolla slightly 

 irregular; stamens 4, attached in the middle of the corolla tube, included; ovary 2- 

 celled: fr. a fleshy drupe with 2 bony nutlets. About 50 species, mostly of tropical 

 America; 2 in China. (An old name for a Viburnum.) 



1. Lantana camara Linn. HJScfr (Ma Ying Tan; Red Horse-tassel) (B.M.842). Shrub, 

 to 7 m.; fls. various, VII-X; fr. purple, black. Introduced from tropical America; 

 locally in Ku. Planted, ornamental. 



151. LABIATAE Mint Family M#£f (Ch'un Hsing K'o; Lip-form Family) 

 Herbs or shrubs, usually aromatic and with 4-sided stems: lvs. simple, opposite 

 or whorled, without stipules: fls. mostly irregular, perfect, 5-merous, in dense axillary 

 fascicles; stamens 4, didynamous, or 2, inserted on the corolla tube; ovary superior, 

 with a prominent disk at the base, deeply 4-lobed; style slender, with 2 stigmas, from 

 the center of the lobed or parted ovary; fr. of 4 one-seeded nutlets. About 200 genera 

 with 3,200 species, in temperate and tropical regions; 60 genera and 335 species in 

 China. 



Key to the Genera 



A. Styles not gynobasic; upper lip of the corolla much shorter than the 

 lower, notched or bifid: nutlets with a large lateral or oblique scar 

 of attachment. 

 Corolla limb apparently one-lipped, deeply cleft between the two 



small upper lobes; middle lobe larger than the lateral 1. Teucrium 



Corolla limb 2-lipped; the upper lip very short, notched; the lower 



lip larger, with the middle lobe cleft or emarginate 2. Ajuga 



AA. Styles gynobasic; upper lip of the corolla equal to or longer than the 

 lower, usually entire: nutlet with a small basal scar of attachment. 

 B. Calyx 2-lipped; lobes closed in fr. 



Fls. in terminal spikes or racemes; bracts of the infl. not 

 overlapping; calyx bearing a helmet-like projection on the 



upper side 3 . Scutellaria 



Fls. in dense cylindric or head-like terminal spikes; bracts of 



the infl. overlapping; calyx without helmet-like projection.. 4. Prunella 



330 



