847 



wski var. cupulatum fide B 1:530. 



E. TEXANUM Scheele in Linnaea 25:260 



P 4:94.r=Redowski fide Ik. 



ECHZTES P Br. Hist Jamaic 181 (1756). 



E. MACROSIFHON T, bot Mex bound 



158 t 43.=Macrosiphon Berlandieri fide 



Ik. M 1:2 as Macrosiphonia macrosi- 



phon. 



ECI.IFTA L, Mant 2:157 (1771). 



E. ALBA Hassk, Pf Jav Rar 528; Mig 



Fl Ned Ind. 2:65.=Erecta fide Ik. near 



Ft Yuma, Cal. (Or 2093). 



EDOSMIA Nutt, T & G Fl 1:612 (1840). 



E. GAIRDNERI Nutt Ic. P 1:274 as At- 



aenia Gairdneri. B 1:54 as Carum Gaird- 



neri. 



E. OREGANA Nutt hb. P 1:274 as At- 



aenia O. 



EGIiETES Cass, sc Philom b 1817:153. 



E. CAX.IFORNICUS K 1:57. Cur 1:140 as 



Eriophyllum caespitosum. 



ELATE3IUM Jacq. Stirp Am 241 (1763). 



E. BIG E ILO VII Wat 12:252. B 2:449. rr 



Echinocystis B? (fide Ik). 



E. MINIMUM Wat 12:252. B 2:449.=: 



Echinocystis m fide Ik. 



ELATINACEAE. 



Low herbs with opp or verticillate 

 stipulate entire or serrate Ivs, and sm 

 axillary or fascicled regular perfect fls: 

 sep 2-5, imbricated: pet equal in num- 

 ber, hypogynous: sta equal in number 

 or twice as many: ova 2-5-celled: sty 2- 

 5; ovules many, anatropous: cap with 

 septicidal dehiscence; placentae central: 

 sd-coat crustaceous, rugose or ribbed. 



Genus ELATINE Linnaeus. 

 L. Gen. ed 1, 118 (1737). 



Water- wort: glab dwarfs, somewhat 

 succulent, growing in water or in wet 

 places, rooting at nodes: Ivs entire: fls 

 2-4-merous: sep sub-membranous, ob- 

 tuse: pet w or w'ish: cap globose, thin 

 membranous, 2-4-celled, several or many 

 seeded; sds striately sculptured. 

 ELATINE AMERICANA Am. 

 Arn in Edinb J nat geog sc 1:431. B 1: 

 80. 2:436. A l:27d. 



ELATINE BRACHTSPERMA Gray. 

 G 13:361, 363. K 2:343. B 2:436. Ab 251. 

 A 1.27d. 



EL^ TINE CALIFORNICA A. Gray. 

 G 13:364. B 2:436. Da 3. A l:27d. 

 E. TEX AN A T & G Fl 1:678. B 1:80 as 

 Bergia T. 



Genus EL.EOCHARIS R. Brown 



Ann or per herbs, with simple, com. 

 terete sts, and Ivs reduced to mere 

 sheaths or the lower rarely bearing a 

 blade: Spkts solitary, terminal, erect, 

 several many-fid, not subtended by an 

 inv: .scales concave, spirally imbricated: 

 perianth of 1-12 com retrorsely barbed 

 bristles, or sometimes 0: sta 2-3: sty 2- 

 cleft and ak lenticular or biconvex, or 3- 

 cleft and ak more or less distinctly 3- 

 angled: base of the sty persistent on the 

 summit of the ak, forming a terminal 

 tubercle. Spike-rush. 



ELEOCHARIS ACICULARIS R. Br. 

 R Br, Prod 224. Ab 70. Ha 65. Da 18. 

 B 2:221. Eu. Asia. Brit Columbia to Mex. 

 Rt-stock very slender, creeping; sts 

 1-8' hi, very slender; spkt 1-3' lg, few- 



848 



fid; bractlets ovate-oblong, \W \g, r'lsh- 



brown with broad g midvein: sty deeply 



3-cleft: ak %" lg, obscurely triangular, 



ribbed on the sides; tubercle broad, sh. 



blunt. 



ELEOCHARIS ARENICOLA Torrey. 



T, ex E & G, Bost J nat hist 5:237. Da 



18. B 2:222. 



Near Vulcan de las Tres Virgenes, 

 Baja! 



= Eleocharis Montana. 

 E. BOI-ANDERI G 7:392: B 2:222. 

 ELEOOHARIS CAPITATA R. Br. 

 E. DOMBEYANA Kunth, En PI 2:145, 

 Peru. (Boeck, Linnaea 36:450, as to 

 Drummond's plantr=arenicola fide B 2: 

 222). 



E. ENGELMANNI Steud, Syn pi Cyp 79, 

 ovata fide IK (Halls Texas n 6i>(i ob- 

 tusa fide B 2:222), 



E. MONTANA Roem & Schult, Syst 2: 

 153. Bth 27 (B 2:222 as truncata). Ab 



Eleocharis arenicola Torrey. 



Per; sts slender, sulcate, 15-45 cm hi, 

 erect; basal sheaths brown; spike oblg 

 or sometimes ovate, 4-10 mm lg, round- 

 ed at apex; scales num, closely imbri- 

 cated, ovate, very obtuse, brown with g; 

 midvein, scarious margined; bristles 4-tt, 

 about =ing ak; sty 3-cleft; ak obtusely 

 3-angled, oblong-obovate, about 1 mm 

 lg, g'ish brown, smooth; tubercle broad 

 at base, ^slightly constricted, deltoid, 

 acute. 



E. OBTITSA Schult, Mont 2:89. = ovata 

 fide Ik. B 2:222. 



E. OZiIVACEA T, N Y ann Lye 3:300. B 

 2:222, Ore. 



E. OVATA R Br, Prod 224. B 2:222, Eu. 

 ELEOCHARIS PALUSTRIS R. Br. 

 Prod 224. Eu. B 2:221. Da 18. Ab 70. 

 Ha 65. 



Common spike-rush. Per: ra-stock 

 stout, creeping, stoloniferous; sts %-2 

 hi, slender, mostly terete, sheathed at 

 base, If-less; sheaths sub-truncate; 

 spikelet many-fld, 6-12" lg, oblg-lanceolate 

 to linear, brown with broad w'tish mar- 

 gin and g'ish keel; sty 2-cleft; ak plano- 

 convex, rounded but not angled on back, 

 1" lg including tubercle, which is con- 

 stricted at point of junction. Baja! SF. 

 creeping spike-rush. 



E. PATJCIPI.ORA B 2:221 based on Scir- 

 pus p, Lightf, Reicheub Ic Fl Germ 8 t 

 2!) 9. 



E. PTGIKAEA T, N Y Lye ann 3:313.= 

 Scirpus nanus fide Ik. B 2:221. 

 E. ROSTEiltATA T, Fl N Y 2:347. B 

 2:222. Da 18. Ab 71, LA, SEer. Baja! 



Per; sts rather slender, compressed, 

 strongly sulcate, 3-8 dm hi; often re- 

 clining and rting at apex; basal sheaths 

 light colored, truncate; spike oblong, 

 6-10 mm lg; scales straw-colored, or pa.e 

 brown, oxate, obtuse, carinate, rather 

 firm, about 4 mm lg; bristles 6, exceed- 

 ing- ak; sty 3-cleft; ak obovate, obtuse- 

 ly 3-angled, about 2 mm lg; tubercle not 

 constricted at base, pyramidal, about 1 



Eleocharis rostellata occidentalis Wat, 

 Variety OCCIDENTALIS Wat, B 2:222 

 "Nutlet nar'er, oblg-obovate: bristles 

 mostly sh'er." Al> 7; as typical. 



