Tab. 7191. 



REHMANNIA (Trianophora) rupestris. 

 Native of China. 



Nat. Ord. Sciiophularine.e. — Tribe Digitale*. 

 Genus Reiimannia, Libosch.; (Benth. et Hooh.f. Gen. PL, vol. ii. p. 960.) 



Reiimaxkia (Trianophora) rupestris ; tota albo-lanuginosa v. glabrata, cau- 

 libus ramosis ramisque crassiusculis pendulis, foliis orbiculari-ovatis 

 obtusis grossis crenatis nervis subtus crassis, floribus in axillis solitariis 

 sessilibus v. in ramos subracemosis, bracteolis 2 linearibus, calycis cylin- 

 dracei alte 10-costati lobis brevissimis erectis 3-fidis, corolla? laxe glan- 

 duloso-pilosa? tnbo elongato lente curvo calyce triplo longiore, lobis tubo 

 multo brevioribus rotundatis, ovario 2-loculari, capsula (placentis septicide 

 solutis) 1-loculari, seminibus minimis. 



R. rupestris, Helmsl. in Journ. Linn. Soc. vol. xxvi. p. 195. 



Mr. Hemsley in describing this remarkable plant observes 

 that it differs essentially from all the other species of the 

 genus in the thick usually woolly leaves on long petioles, 

 and in the multifid calyx. Hitherto one species of the 

 genus alone had been in cultivation, Ii. glutinosa, Libosch 

 (li, chinensis, tab. 3653), a reference to the plate of which 

 shows how widely different these two are in these and other 

 respects. The genus is now known to consist of six or 

 seven species, natives of China, Formosa, and Japan. Its 

 systematic position was considered uncertain, whether re- 

 ferable to Gyrtandracece or Scrophularmece according as 

 whether the ovary is one-celled with parietal placentation, 

 or two-celled with the placentas on the septum. Judging 

 from the placentation of R. rupestris and that of B. 

 angulata, Hemsl. (R. glutinosa, var. angulata, Oliv. in 

 Hook. Ic. Plant t. 1589), the placentas appear to meet 

 in the axis of the young ovary and be there united, but to 

 separate afterwards ; and as the habit, aastivation of the 

 corolla, and other characters of the genus ally it to the 

 tribe Dig it niece of Scrophitlarinece, its position in the latter 

 order has been, no doubt rightly, generally conceded. 



R. rupestris was discovered by Mr. A. Henry in the 

 province of Hupeh, growing only in almost inaccessible 

 August 1st. 1891. 



