250 xx. TAMARISCINE^:. (W. T. Thiselton Dyer.) [lfyricaria. 



stalked plume ; embryo ovoid. DISTKIB. Europe, Mid- Asia ; known spe- 

 cies 4 ? 



1. UK. germanica, Desv. in Ann. Sc. Nat. iv. 349 ; bracts ovate-lan- 

 ceolate 3-4 times as long as tbe pedicels, sepals free lanceolate, stamens 

 connate for half their length. M. l>racteata, ]!</!>' III. 214, t. 44; Hoi**. 

 Fl. Orient, i. 763. M. llofiineisteri, Klutz, lieis. Pr. \V<ildi-,n. 120, t, 25 (plume 

 sessile). Tamarix germanica, Lin it. 



TEMPERATE and ALPINE HIMALAYA; from SIKKIM to KUMAON, alt. 10-14,000 ft. 



DISTRIH. Westward to Europe. 



A bush, 4 -8 it. Xtnit* slender, striate, 'glaucous-green when young. , Leaves linear- 

 lanceolate. /,'fir, /,* 1-18 in., spiked, lateral or tenuinal. Bracts with broadly mem- 

 branous margins. Xf/Hil* aliout cipiallin^ tin- petals. 



VAK. 'iH-oxtHita, r.einh. and Hook. f. Qn. PI. i. 161 (sp.) ; prostrate, branchlets 

 asccii(iiii4, oi'ten very short with closely imbricate leaves, seed-plume sessile. A very 

 Alpine Ibrm. 



2. TO. eleg^ans, Untfle 111. 214; bracts ovate about twice as long as the 

 pedicels, sepals connate below, stamens connate for one-fourth of their 

 length. M. germanica /'"/. longitblia, Ihrb. /////. Or. II. J. <( T. 



\\'I:STKK\ HIMALAYA and WKSTKKV TIHKT, IVoni (ianvhal, alt. 11,500 ft., Royle, &c., 

 to La<!ak, &c., alt. 0-15,000 ft., 7'. T/n>, 



A bush, with smooth stria'r slfiul'-r items. l.><n-c.s oblong-ovate, narrowed at the 

 base. Ji'ari HIT* :i in, lateral, lax. J tract a short, aeuminatc. with narnwly membranous 

 margins, tic^als much shorter than the petals, obtusely triangular at the apex. 



ORDER XXI. ELATmKflE. (By W. T. Thiselton Dyer, F.L.S.) 



Minute semi-aquatic or terrestrial herbs or undershrubs. A^//v.s oppo- 

 site or whorled, entire or serrate, stipulate Flowers small, axillary, soli- 

 tary or cymose. <sVyw/.< an<l jn'tnl* each 2-5, free, imbricate in bud. Storm /<.s 

 as many or twice as many as the si-pals, liypogynous. five; anthers versa- 

 tile. Ovary free ; cells and styles 2-5, stigmas capitate; ovules many, on 

 the inner angles of the cells, anatropous, raphe lateral or ventral. < '"/>- 

 .-/'/ septicidal ; valves Hat concave or incurved, separating from the axis 

 ami septa, tie&k straiglit or curved, raphe on the concave side, testa 

 rugose, albumen scanty or 0; embryo cylindric, straight or curved, cotyle- 

 dons small. DISTRIJB. Scattered over the world; genera 2, known species 

 about 20. 



Sepals obtuse, aquatic herbs 1. ELATINK. 



Sepals acute, Mowers usually 5-merous 2. BEKOJA. 



1. ELATINE, Linn. 



Minute aquatic tender creeping herbs. Leaves opposite or whorled. 

 Flowers very small, axillary, usually only one to each node. Sepals 2-4, 

 membranous obtuse. Petals 2-4. Ovary globose. Cajvule membranous; 

 septa evanescent after bursting or adhering to the axis. Seed cylindric, 

 straight or curved, ridged and pitted. DISTEIB. Temperate and subtropical 

 regions; species about 6. 



1. E. americana, Am. in Edin. Journ. Nat, Sc. i. 431 ; flowers sessile 

 or nearly so, stamens longer than the sepals. 



