^9 



enclosed in the calyx : seed ovate : aril none. — Aquatic herbs tri- 

 chotomous ; stem fistular : leaves opposite : flowers narrowly spiked, 

 much opening after flowering, at last reflexed. 



(1) C. AQrATICA. (JVall.) 



Ident. Dec. prod. XIII. s. 2. p. 321. 



Syn. Achyranthes aquatica, R. Br. — A. natans, Hamilt. — 

 Celosia spinescens, Koen. — A. trichotoma, Perottet. 



Bngra-o. Wight's Icon. t. 1780. 



Spec. Chae. Stem erect, furrowed : branches angled, pube- 

 scent : leaves attenuated at both ends, wrinkled : bracts nearly 

 equal, small, somewhat pubescent at the apex : sepals 5 — 6 times 

 longer than the bracts, narrow-lanceolate, acute, 5-nerved : utricle 

 minute, glabrous,, brown : flowers greenish. 



Northern Circars. 



GENUS XIV. DIGEEA. 



Pentandria Monogynia^ Sex: Syst: 



Deriv. Erom the Arabic word Didjar. 



Gen. Chae. Elowers hermaphrodite, tribracteate, ternate, 

 middle one fertile, lateral ones sterile, and finally changing into a 

 horizontal 4-branched crest : sepals 5, somewhat unequal : stamens 

 free : staminodes none : anthers 2-celled : ovary 1-celled, 1-ovuled : 

 style filiform : stigmas 2, very short, somewhat recurved ; fruit a 

 woody capsule, subglobose, l-seeded, enclosed in the calyx : seed 

 sublenticular. 



(1) D. AETENSis. {Forsh.) 

 Far. perennans. 



Ident. Dec. prod. XIII. s. 2. p. 324.— Eoxb. ior. Ind. I. 

 p. 694. 



Syn. Achyranthes polygonides, JRetz.—A. digera. Fair. — 

 Chamiasoa commutata, Spreng. — Desmochseta muricata, B. W. 



Engrav. "Wight's Icon. t. 732. 



Spec. Chae. Stem perennial, irregularly tetragonal, glabrous : 

 leaves alternate, ovate, roundish, often lanceolate, acute, sometimes 

 rufescent at the margin: spikes erect, stiif : bracts ovate, whitish, 

 lower one very concave : sepals twice as long as the bracts, some- 

 times 4 by abortion, ovate-lanceolate, exterior ones acute, 3- 

 nerved, inner ones shorter, narrower, 1-nerved : anthers exserted, 

 red : pistils reddish : capsule hard, 2-toothed at the apex, keeled, 

 tubercled, greenish : crests shorter than the fruit, green : lower 

 branches recurved, upper ones incurved, subtrilobate : seed not 

 shining, brown : flowers small, red. 



Peninsula. 



