3S(J TETRANDRIA MONOGtNIA. H^drophyUx. 



suk ovate, chartaceous, bursting at the apex in two bifid slightly 

 recurved valves. Dissepiment evanescent. Seeds two, linear, with 

 a ventral furrow. 



Obs. The description of Crateogonum (amhoinicum) minus s.ve- 

 ritin. Hurt. Anib. vi. p. 25 agrees well with this plant ; but it 

 has Weu quoted under Spermacoce stricta of the younger Linneus, 

 which aiffers in having lanceolate lineale leaves and a branchy stem. 

 The same plant has been cited by Sir J. E. Smith under his Hedy- 

 otis verticUlata (Oldenlandia, Linn. Mant.) in Rees's C>clopaedia. 

 On these grounds I conclude that Rumphius's plant is different from 

 mine, which approaches to S. linifolia, Vahl, and remota, Lara. — S. 

 liana of Roxburgh differs in being smooth on all its parts, and in 

 having pelioled leaves. — N. W. 



HYDROPHYLAX. Schreb. Gen. N. 159. 

 Calyx four-parted; corol companulate. Germ two-celled, one- 

 seeded, inferior. Capsule inferior, angular, two-celled. Seed soli- 

 tary ; embryo erect, and furnished with a perisperm. 



1. H. maritima. Linn. Sp. Fl. ed. Willd. i. 581. 



Sarissus anceps. G(zrt. carp. '\. p. 118. 1. 15. f. 4. 



Diodia orientalis. K6n. Mss. 



A native of the sand hills along the shores of Coromandel and 

 Malabar, where it is in blossom most part of the year. 



Root perennial. — Stem none, but many long, slender, variously 

 bent, stragling, round, coloured branches running over the sand and 

 often striking root from the joints.— L^ares opposite, approximate, 

 short-petioled,froma deep, stem-clasping, dentate cup.^Flowers ax- 

 illary, sub-sessile, one or two together, of a pale pink colour.— Ca/ya? 

 above, four-parted ; divisions ensiform, permanent.— CVo/ companu- 

 late, tube hairy on the inside near the bottom, the four divisions of the 

 border ovate, spreading, with their apices somewhat revolute.— Fi- 

 Jaments four, erect, shorter than the corol, and inserted on the mouth 

 of its tube, opposite to its fissures. Anthers purple.— Gmn oblong. 



