Adhaioda.] xcviii. acanthace^ (clarke). 221 



45. ADHATODA, Nees; Benth. et Hook. f. Gen. PL ii. 1112. 



Calyx subequally 5-tid to the base ; lobes clearly imbricate. Corolla 

 large, 2-lipped ; tube nearly as long as the lips, inflated in the upper 

 half ; anticous lip ovate, 3-lobed ; posticous nearly entire. Stamens 2 

 glabrous ; anther-cells oblong, parallel, at nearly equal height, rounded' 

 acute or shortly tailed at the base ; pollen ellipsoid, the longitudinal 

 smooth depressions with rows of patches, hardly of tubercles. Ovary 

 shaggy; ovules 2 in each cell; style very shortly and equally bilobed. 

 Capsule oblong-clavate, on a short solid stalk, 4-2-seeded ; seeds rugose, 



sometimes obscurely so, not shining ; placentae not rising elasticnlly. 



Shrubs. Leaves large, elliptic, entire, much attenuate at either end. 

 Spikes terminal, peduncled, forming a thyrsus or solitary ; bracts 

 ovate or linear-oblong ; bracteoles 2, about as long as the calyx. 

 Species 8, in the tropical parts of Asia, Africa and America. 



Adhatoda was described as a genus by Nees in Wall, PI. As. Kar. iii. (1832) 102 • 

 and the name thus has priority over Duvernoia, Dr^ge, first described by Nees in DC. 

 Prod. xi. (1847) 322. But, if the bare printing of the n?me Duvernoia by Drege in 

 1837 be maintained to constitute priority of publication, it is not advisable to adopt 

 the generic name Duvernoia for the subjoined species of Adhatoda, because Duvernoia, 

 by reason of its campanulate calyx with subvalvate triangular lobes, would be by some 

 (who sink Adhatoda in Justicia) kept up as a raonotypic genus. 



Adhatoda, though not well separable from Justicia by any one character, is here 

 understood (as by Bentham) to comprise certain shrubs 4-12 ft. high, with large 

 leaves and shaggy ovaries, in which the lower of the 2 anther-cells is not remote nor 

 very long-tailed (as it is in Justicia). 



Bracts ovate or orbicular, ^-f in. broad ; spikes dense, 

 strobilate. 



Bracts with sc&rious edges 1. A. schimperiana. 



Bracts acute, with green edges . . . . 2. A. engleriana. 



Bracts round, with green edges . . . . 3. ^. orbicularia. 



Bracts oblong-linear ; spikes interrupted, not strobilate. 

 One anther-cell lower than the other, base shortly 



tailed . . . . . . . . 4. .4. tristis. 



Anther-cells at nearly equal height, base rounded. 



Mature leaves pubescent on the nerves beneath . 5. A. robu>.ta. 

 Mature leaves nearly glabrous . . . . Q. A. macula t a. 



1. A. schimperiana, Hockat. ex Nees in DC. Prod. xi. 388. 

 Shrub. Leaves G by 2J in., narrowed at eitlier end, obtuse, glabrous; 

 petiole ^-J in. long. Spikes 3-7 by 1 in., several peduncled, often 

 forming a terminal thyrsus, strobilate ; bract § by \ in., minutely 

 pubescent, with a prominent scarious margin ; bracteoles J-^ in. long, 

 ovate. Sepals 5, nearly separate, subsimilar, ^ in. long, oblong-lanceolate, 

 pubescent. Corolla 1 in. in total length, yellowish, purple-spotted, lips 

 I in. long. One anther -cell slightly below the other, nuicronate at the 

 base ; pollen ellipsoid, with two stopples, and rows of spots on the 

 longitudinal smooth bands. Ovary and style-base shaggy. Capsule j-1 

 in. long, pubescent, usually 4-seeded, lower J part a cylindric stalk ; 

 placentae not rising elastically: seeds glabrous, rugose. — A. Rich. Tent. 



