-H^ 



520 



ACAl^TnACE^ 



Ti h 



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herb, Walh 2466 f ! ; Hazara, Stewart ! ; in regione Coromandel, 

 Heyne in Wall, Cat, 2466 ! 

 Distr. Affghanistan ! 



In the * Flora of Hongkong ' I agreed with Mr. Bentliam in 

 regarding D. Chinensis^ D, Bnrmanni^ and D, JRoxburTtii as 

 one species. This arose partly from the confusion Nees had made 

 among the specimens- of these species, and from the rarity of 

 authentic specimens of tlie true D, Surmanni, I have lately 

 had ample material for clearing up the uncertainty about these 

 three species, and I now see that they are distinct. DicUptera chi- 

 nensis, Juss. {Justicia CJiinensiSy Linn.), is cultivated in the Cal- 

 cutta Botanical Grardens, and, besides, has for many years been 

 a weed in many parts of the garden ; it was sent to the gardens 

 in 1809 from China by Mr. Kerr. Specimens of this plant occur 

 in several Indian herbaria, such as Wallich's, Griffith's, Mas- 

 ters's ; and Xees has recorded the locality of some of these speci- 

 mens, as Khasia and Assam, where the plant is quite imknown. 

 Tbe Java species, D. JBurmanni^ is an erect strongly growing 

 plant, very different from the weak trailing D. Chinensis in habit, 

 as well as in the botanical characters of the leaves, bracts, calyx, and 

 corolla. It also grows in the Botanical Gardens most luxuriantly ; 

 it was introduced from the Botanical Garden of Bnitenzorg, in 

 Java, about three years ago. It is certainly Burmann's plant, 

 although his figure of it is bad. The common Indian D. ^t?^- 

 lurgliii is very distinct from either of these species. The state 

 of it called D. liipleuroides by Nees is figured by Boxburgti in 

 the drawings in the library of the Calcutta Botanical Gardens ; 

 the dra-svings are on the same sheet, and by the side of a very 

 accurate representation of the Chinese plant, from which, in the 

 * Flora Indica/ he suggests tbey are perhaps distinct. Besides 

 the cultivated plants of D. Chinensis and D. Burmanni in the 

 Garden, I possess specimens of them from China and Java, sent to 

 me by Dr. Hance and Mr. Teijsmann ; I have also an extensive 

 series of Indian specimens of i>. Boxburghii, It is probable that 

 D. JRoxhurghii is confined to India, while the nearly allied D^ 

 Chinensis seems to be found only in China, and perhaps in the Phi- 

 lippine Islands. The very distinct D. Burmanni is apparently a 

 very local Javan species. 



3. D. RiPARiA, N, ah E, in Wall. PL As. rar. iii. p. 112, et DC I ^ 



P-4S0. 

 Hab. In Burmah, in colUbus prope Prome, infra Melloon, Watt, Cat. 



71831; Pegu, Brandts I; Moulmein, Falconer H 'Rangoon, Cl^9' 





horn ! ; prope Meaday, Scott I 



I 





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