316 



696. ATRIPLEX. 



** Seeds thick, black and polished. 

 Sp. 7-11. 

 b. Calyx rhomboid, thick and coria- 

 ceous. Lobes united on 2 sides. Sp. 

 12-14. 



ii. Stem buff - coloured, without stripes. 

 Calyx almost horny. Sp. 15-19. 

 Not weU known. Sp. 20-25. 

 None of these characters are satisfactory, 

 being in some degree both variable and in- 

 distinct ; but they are the best I was able to 

 fix upon, and will, I think, after a little 

 practice, enable the student to name most of 

 the specimens he mil meet with. 



A. Flowers polygamous. Sepals distinct. 



1 . liortemsis. L. cordato - triangular, 

 toothed, dull, alike on both sides. Sep. of Fr. 

 subrotundo-ovate, quite entire, a. 7, S. Es- 

 capes in m. and s. Eur. 



2. nitens. L. cordato-triangular, sinuato- 

 dentate, shining green above, silvery beneath. 

 Sep. of Fr. quite entire, a. 7, 8. Rubbish and 

 waysides, e. G. Hamb. 



3. microtlieca. L. pale and mealy be- 

 neath : lower deltoideo-hastate ; upper lanceo- 

 late or lineari-lanceolate. Margin entire. Cal. 

 of Fr. rhombeo-ovate, acute, entire, a. Es- 

 capes, les Cabanes near Montp. — Moquin. 



H. Flowers monoecious. . Sepals united below. 



i. Stem with resinous stripes. 



a. Calyx ovato-triangular, the lobes united 



only at base. 



* Seeds, at least the larger, compressed and 

 shagreened. 



4. calotheca. Lower L. triangulari-has- 

 tate, green on both sides ; upper hastato-lan- 

 ceolate ; uppermost quite entire. Cal. of Fi\ 

 cordato-triangular, siuuato-dentate with subu- 

 late, acuminate teeth and a long acumen, a. 

 7, 8. Rubbish and waste. Berlin. Pom. 



5. hastata. Lower L. hastato-triangular, 

 with nearly horizontal lobes ; uppermost lan- 

 ceolate, quite entire. Cal. of Fr. nearly entire. 

 (Spikes interrupted, nearly simple, Bab.) a. 

 7-9. Rubbish, 8fc. 



6. tatarica. L. deltoideo-oblong, with ad- 

 vancing lobes ; upper lanceolate, very entii'e. 

 Cal. of Ft. ovato-deltoid, quite entire. Spike 

 of Fr. lax, nodding, a. 7, 8. Dry hills. Rhine. 

 Saxony. 



** Seeds blach and polished^. 



7- i-iiicrospersaa. Lower L. triangulari- 



hastate, with horizontal lobes, denticulate, 

 often opposite ; upper hastato-subulate. Lobes 

 of Cal. of Fr. quite entire. Clusters pauicled 

 in dense spikes, a. 7-9. Waste. Sic. (Bath, 

 Bab.) 



8. deltoidea. L. often opposite, (nearly 

 aU hastato-triangular, Bab.,) with horizontal 

 lobes. Clusters panicled in dense spikes. Lobes 

 of Cal. of Fr. dentate, a. 7-10. Cult, and 

 waste. 



9. triangularis. " Stem and branches pros- 

 trate. L. opposite: lower hastato-triangular, with 

 horizontal lobes ; middle with ascending lobes on 

 a wedge-shaped base ; upper small, lanceolate, 

 entire. Clusters in slightly branched, inter- 

 rupted spikes. Cal. hardly exceeding fruit, en- 

 tire, or slightly toothed, a. 7, 8. Sea-coast, 

 rare." — Bab., ^s, prostrata. 



10. an^ustifolia. Lower L. deltoid, with 

 advancing lobes from a wedge-shaped base. 

 Cal. of Fr. with prolonged lateral angles ; the 

 larger leaf-like and without tubercles. (Spikes 

 interrupted, nearly simple, Bab.) a. 7-10. 

 Rubbish, waste, fields. 



11. erecta. Lower L. with advancing lobes, 

 on a wedge-shaped base ; upper lanceolate, en- 

 tire. (Spikes branched, dense, Bab.) Cal. of 

 Fr. somewhat deltoid, denticulate, hardly ex- 

 ceeding fruit, a. 7-10. Fields. 



b. Calyx rhomboid, thick and coriaceous. 

 Lobes united on both sides. 



12. Sabingtonii. Stems spreading. L. 

 mealy : lower ovato-triangular, unequally sinu- 

 ato-dentate ; upper lanceolate, dentate, often 

 Z-lobed at the base. Cal. of Fr. acute, toothed, 

 tubercled, undivided. Pan. dense, many-ilow- 

 ered. Clusters few-flowered. Seeds compressed 

 and shagreened. a. 7-9. Sea-shore. — Bab. 

 The typical form of the calyx of the fruit 

 seems to be a square placed diagonally, with 

 the lateral angles rounded, sometimes slightly 

 depressed, and sometimes slightly prolonged. 

 It is more coriaceous, and has more of an an- 

 gle at the base, than A. hastata. It may 

 possibly be A. rosea 7 crassifoha of Moquin. 



13. littoralis. L. lineari-lanceolate, nearly 

 entire. Cal. of Fr. rhomboid, acute (open, 

 Bab.), a. 7-9. Salt marshes. 



14. marina. L. oblong or ovato-lanceolate, 

 iiTegularly toothed, rarely entire. (Cal. of Fr. 

 obcordato-triangular, closed, Bab.) a. 7-9. 

 Salt marshes. 



