Digitalis SCROPHULARIACEAE Paulownia 



14. Digitalis Linn. Foxglove ^giftftM (Mao Ti Huang Shu) 



Tall herbs with alternate Ivs. and showy fls. in terminal often 1-sided racemes; 

 corolla declined, often constricted above the ovary; stamens included: seeds numerous. 

 25 species, in western and central Eurasia; one cultivated in China. (Latin: digitalis, 

 of or belonging to the finger; the flowers were thought to resemble the fingers of a 

 glove.) 



1. Digitalis purpurea Linn. =&MM (Mao Ti Huang; Hairy Rehmannia) (B.M.894). 

 Erect biennial or perennial, to 1.5 m.; fls. purple, yellow, white, V-VI; lvs. 

 downy-pubescent. Introduced from western Europe; locally in An., Che., Ku. 

 Cultivated, ornamental, grown as a drug plant in western countries. 



15. Rehmannia Libosch. ex Fisch. & Mey. #&MM (Ti Huang Shu) 



Viscous-villous perennial herbs, brg. from the base: fls. large, borne in terminal 

 leafy racemes; calyx and corolla 5-lobed or -cleft; posterior segment of calyx elongated; 

 corolla somewhat 2-lipped; stamens 4, included: fr. a dehiscent capsule with many 

 small seeds. 5 or more species, in China and Japan, all or most of them in China. 

 (Named for J. X. Rehmann, 1753-1831, a German physician and writer of pharamaceu- 

 tical publications.) 



1. Rehmannia glutinosa Libosch. {R. chinensis Fisch. & Mey.) ti&f£ (Ti Huang) 

 (Mak.F.138;F.H.E.2:193). Brg. glutinous herb, 3-6dm. high; fls. purple, VI-VIII. 

 North and northeastern China; locally in An., Ku. Mountain slopes. 



16. Paulownia Sieb. & Zucc. MS (P'ao T'ung Shu) 



Deciduous trees with chambered pith and showy fragrant fls. in terminal panicles 

 which appear before the lvs.; corolla tube enlarged above, with an oblique limb: 

 capsule 2-valved, with numerous small winged seeds. 10 species, in eastern Asia, 

 most of them in China. (After Anna Paulowna, Princess of the Netherlands.) 



Key to the Species 

 Lvs. and corolla pubescent or tomentose. 



Lvs. glabrous above, tomentose beneath: corolla white, spotted purple 



within, silky pubescent 1 . P. fortunei 



Lvs. pubescent above, pubescent or tomentose beneath: corolla violet, 

 with darker spots and yellow stripes inside, glandular-pubescent 



outside 2 . P. tomentosa 



Lvs. and corolla glabrous; corolla whitish or pale violet 3. P. rehderiana 



1. Paulownia fortunei (Seem.) Hemsl. ^M (P'ao T'ung; Bubble T'ung) (Lee 937). 

 Tree, to 25 m.; fls. white, spotted purple, IV-V; fr. IX-X. China; locally in An., 

 Che., Hun., Hup., Ki., Ku. Woodland. 



2. Paulownia tomentosa (Thunb.) Steud. g^/gfis] (Jih Pen P'ao T'ung; Japanese 

 Paulownia) (R.M.786). Tree, to 15 m.; fls. pale violet, with spots and yellow 

 stripes within, IV-V; fr. IX-X. Introduced from Japan, Korea; locally in An., 

 Hup., Ku. Planted, ornamental. Fig. 338. 



3. Paulownia rehderiana Hand.-Mazz. $ftffi (Kan T'ung; Kiangsi Paulownia) (Lee 

 940). Tree; fls. whitish or pale violet. Central China; locally in Ki. Woodland. 



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