SiKEdece.] CXXXI. CHE]S OPODIACE^. 07 



subspongiosus, pericarpio semini rarissime adhserente. Semen horizontale, obliciuuin v. 

 erectum, orbiculare oblique pyriforme v. subreniforme, turgidimi v, compressum, hilo 

 emarginato, testa cnistacea Isevi, integumento interiore Biembranacco, albumine v. parco 

 in massuias 2 diviso ; embryo gracilis, piano- spiralis, siepissime viridis, radicula asccndente 

 descendente v. laterali.— Herbse v. fnitices salsi, erecti v. prostrati, simplices v. diffuse 

 ramosi, virides v. glanci, rarius snbfarinosi, rarissime puberuli. Folia terna, caraosa, 

 teretia vermicularia v. semiteretia, rarius spathulata v. planiuscula, integerrima. 

 Flores parvi v. minuti, axillares, sessiles v. sub^essiles, solitarii v, glonieratij glomerulis 

 interdum folii basi adnatis. Semina fide Bungei in speciebus compluribus dimorplia, 

 alia prsecocia testa Crustacea, alia rariora serotina testa membranacea. 



Species ad 40, in littoribus et in desertis salsis obvise. Boiss. Fl. Or. iv. 93?. S. Wats, in Froc. 

 Amer, Acad. ix. 87. Bot. Calif, ii. 58, iiied. 



Genera sequentia a variis auctoribus distincta, characteribus inter t^e minima validis definite, 

 pleraqno jam a Bungeo in Boiss. 1. c. in unum juncta sunt, cetera nostra sensu aequo jure rejicienda. 



Stt^da, Moq. in DC. Prod. xiii. ii. 156, ei in Ann. Sc. Nat. ser, 1, xiiii. t. 19, 20, 21 a, 22 a. 

 Perianthium 5-partitum v. 5-fidum, segraentis lobisve sequalibus inappendiculatis fructiferis immu- 

 tatis. Ovarium basi lata sessile v. periantbii tubo adnatnm. Semen saepius erectum. Fall. ILL 

 Fl. t. 42. Wight, Ic. t. 1792, 1796. Perianthium in 8. monoica, S. vcrmicukta, aliisque certe tan- 

 tummodo 5-lobum ovario basi tubo adnato ut in Schanginia. 



Belovia, Moq. in DC. Prod. xiii. ii. 168, est fide Bungei in Boiss. Fl. Or. iv. 942, forma heterocarpa 



*S. setiger(E, Moq. 

 Sevada, Moq. in DC. Prod. xiii. ii. 154, cujii.s fructus iguotus est, charactere uuUo dato a Svada 



distingucre possumus. 



ScHOBEEiA, e. A. Mey. in Ledcb. Fl. Alt. i. 396, Ic. Fl. Boss. t. 44, 45, excl. S, corniculata (Cheko- 

 PODINA, Moq. in DC. Prod. xiii. ii. 159). Perianthium 5-partitum v. 5-lobum, segmentis lolisve 

 Bubeequalibus post antlieein immutatis. Ovarium sgepiesime basi contraetum, Semen saepibsmiu 

 horizontale. Fees, Gen. Fl. Germ. Monochl. n. 62. Fl. Dan. t. 489 {Chenopodium). Poll. 111. PL 

 t. 39, 43, 44, 47 {SiC(£da). Wight, Ic. t. 1793 {Chcno}>odinm). Schoberia, Moq. in Ann. Sc. Isat. 

 ser. 1, xxiii. 321, t. 22, et in DC, Prod, xiii. ii. 165, perianthii segmentis dorso comiculatis v. 

 appendiculatis includit S. comicnlatam, C. A. Mey. ; Ledeb. Ic. Fl. Koss, t. 195, et 8. calccolifowicm, 



Moq. 1. c. 166. 



BiiEziA, Moq. in DC. Prod. xiii. ii. 167. Perianthium depressum, profunde 5-lobum, denium 



auctum, lobis dorso transversim alatis. Ovarium basi contraetum. Semen horizontale. Hcrbu 



annua Asise centralis. 



Calvelia, Moq. in DC, Prod. xiii. ii. 167. Perianthium urceolatum, 5-lobum, demum auctum, 



lobis longitudinaliter alatis. Semen horizontale. Hcrba annua, Altaiea, a nobis non visa. 



Schawginia, C. a. Mey. in Ledcb. Fl. Alt. i. 394. Perianthium urceolatnm v. turbinatum, 5-lobum, 

 demum sspe inflatum, lobis fructiferis immutotis v. dorso tuberculo auctif^. Ovarium basi tubo 

 perianthii adnatnm v. eo immersum. Semen erectum. Moq. in DC. Prod. xiii. ii. 153 ci in Ann. 

 Sc. Nat, ser. 1, xxiii. t. 21 b. Boiss. Fl, Or. iv. 944. Pall. III. PI. t, 40, 41 {Sudda). Species 3 

 V, 4, quarum typica, S. linifolia, C. A. Mey., forma perianthii, ovarii insertions et semine a S. ver- 

 nlicilata oXusque non differt. Semen, ex Boiss., pericarpio arete adhaeret. Species JEgj-ptiacai 

 et Arabic^e ab Asiaticis diffLi-unt habitu floribusque multo majoribns. 



51. Alexandra, Bunge in Linnxa, xvii. 120. (Pterocalyx, Sclirenk in Bull. Phjs. 

 Math. Acad. Sc. Petersh. 1843, i. 3fil.)-Flores polygami, spicati, solitani v. conferti, 

 bracteati et 2-bracteolati, bracteis magnis imbricatis florea velantibus, bracteolis mimmis 

 subulatis. Perianthium complanatum, orbiculare v. obcordatum, membranaceum, 5-par- 

 titum, demum immutatum ; segmenta 2 lateralia cymbiformia, dorso et supeme late 

 alata, antico et 2 posticis multo minoribus planis obtuais. Stamina 5, filaraentis subu- 

 latis ; antherje oblong®, obtusjo. Discus 0. Ovariutu ovoideum, in fl. tj rudimen- 

 tarium ; stigmata 2-8, filiformia, undique papillosa, ovuluni subsessile. Utriculus peri- 

 anthio inclusus, orbicularis, compressus, pericarpio membranaceo semini non adhairente. 

 Semen erectum, orbiculare, basi rostellatum, testa Ifcvi Crustacea brunnea, albumine ; 

 embryo piano- spiralis, gracilis, viridis, radicula elongata infera.— Hcrba annua, erecta, 



F 2 



