Hygrophila.] cix. ACANTHACEJE. (C. B. Clarke.) 407 



Mag. ii. 311, and in DC. Prodr. xi. 81; Dalz. $ Gibs. Bomb. Fl 184; 



W. DECCAN PENINSULA, from Malwa (EdgewortJi) to Mysore; frequent in the 

 Concan. 



RootstocTc woody ; stems 4-16 in., procumbent or creeping. Leaves \-\ in., from 

 lanceolate to orbicular, entire, minutely strigose and with long lax white hairs, lineo- 

 late with raphides, nearly glabrate or minutely closely tomentose beneath ; petiole 

 0- in., but in some basal leaves -1 in. Spikes dense, white-strigose ; bracts in., 

 elliptic; bracteoles | in., oblong. Sepals 5 in., linear. Corolla ^-| in. ; tube ven- 

 tricose upwards, limb long, deeply 2-lipped. Style hairy. Capsule % in., 8-10- 

 seeded. The figure of Wight (Ic. t. 1493) shows the 4 anthers subequal, but this is 

 not the case in his example from which he notes his Icon was taken. The synonym, 

 Ruellia polysperma, Roth, has been always supposed to have been Hygrophila poly- 

 sperma, T. Anders. ; but as Roth says his plant had didynamous stamens and ovate 

 heads, his description must belong here, whatever his plant was. The leaves of H. 

 Serpyllum vary very much in form and indumentum. 



VAE. Hookeriana ; leaves orbicular obtuse cauline often distinctly petioled. 

 Physichilus sp. nn. 2, 3, Serb. Ind. Or. H. f. Sf I 7 . Concan ; Stocks. Bombay, 

 LMV. A larger plant ; cauline leaves often 1 in. diam., petiole - in., with minute 

 white bristly hairs, but none of the long white hairs characteristic of H. Serpyllum 

 type. 



3. H. Stocks!!, T. Anders, ms. ; oauline leaves petioled spathulate- 

 elliptic, spikes ovate or shortly oblong, anthers of the posterior stamens 

 the length of the anterior. Physichilus n. 4, Herb. Ind. Or. H.f. Sf T. 



CONCAN ; Stocks. 



Branches 18 in., stout ; internodes 2-3 in. Cauline leaves 2% by 1 in. ; petiole 

 in. Corolla | in. Anthers of the posterior stamens minute, but (at least some- 

 times) they appear to contain a few pollen-grains. Reduced to a Var. of H. Serpyl~ 

 lum by T. Anders, (in Journ. Linn. Soc. ix. 456), but subsequently marked by him as 

 a species. 



* Whorls axillary, distinct. 



4. H. salicifolia, Nees in Wall. PI As. Ear. iii. 81, and in DC. 



Pro*??, xi. 92 ; erect, leaves lanceolate glabrous, bracteoles lanceolate acute, 

 calyx in flower divided half-way down lobes linear hispid-ciliate, capsule a 

 little longer than the calyx. WlgU Ic. t. 1490 ; Dalz. $ Gibs. Bomb. Fl 

 184. Euellia salicifolia, Vahl Si/mb. iii. 84; Roxb. Fl. Ind. iii. 50; Wall. 

 Cat. 2373. E. longifolia, Roth 'Nov. Sp. 306. 



Throughout INDIA and CEYLON, very common. 



Stems 1-3 ft., nearly glabrous. Leaves 2% by J- in., narrowed at both ends, 

 lineolate by raphides ; petiole 0- in. ; bract - in., ovate or elliptic ; bracteoles 

 as long as the calyx. Calyx \-^ in., divided to the base in fruit. Corolla j-f in., 

 pale purple. Stamens 4, fertile ; anthers subequal. Capsule -f in., 20-28-seeded. 

 The whole of the species of this section are included under the present by T. Anders, 

 (in Journ. Linn. Soc. ix. 456), which then has a geographic area extending through 

 S.E. Asia, Malaya, Trop. Australia, Trop. America ; but if this view be taken, the 

 name of the species should be H. angustifolia, Br. (Prodr. 479 ; Nees in DC. Prodr. xi. 

 91). 



VAE. assurgens- stem decumbent or 'geuiculate rooting with erect branches, 

 leaves obovate-oblong or elliptic subacute. H. assurgens, Nees in DC. Prodr. xi. 90, 

 excl. syn. and var. ft. H. radicans, Nees in Wall. PI. As. Ear. iii. 81, and in DC. 

 1. c. 92. Rnellia radicans, Wall. Cat. 2410. E. Bengal, frequent ; Walhch, &c. 

 Malacca ; Maingay (Malaya). ' 



VAE. dimidiata; leaves obovate or elliptic glabrous densely lineolate especially on 

 the upper surface, base attenuate. H. dimidiata, Nees in Wall. PI. As. Ear. iii. 81 j 



