Biwiicetc] CXXXIV. POLYGONACE.^. 101 



inquilinae. nonnullas in ciiltis ruderatieque nimc fere cosmopolitanse. Mcisan. in DC. Prod. xiv. 42, 

 et in Ann. Mus. Luyd. Bat. ii. 55- Necs, Gen. Fl. Germ. ModocJtl. n, 54. Boiss. Fl. Or. iv. 10U6. 

 Areach. in Of vers. K. Vet. AJcad. Fork Stockhohn, 1862, 57, t. 3. 



Species ploneque facile distriLuuntur in sectioues 2 natarales aL auctoribus consensu receptas: 

 \. Laj}iitJmm. Herbae ssepius robiistiores rarius liumiles, tbliis basi acutis obtusis v. auriculis 

 obtusis eordatis. Perianthii segmenta interiora integcrrima v. dentata, 2 v. omnia 3 basi extiis SEepo 

 granulifcra.— ZTrt^MC, Arzneigeir. xiii. t. 1 ad 5. 7* Scichh. Iconogr. Etn\ t. 345, 366 ad 370. 486, 

 487, 516, 576. Trim. Journ. Hot. t. 331, 140, 146, 173. Mori^, Fl. Sard. t. 108. Guss. PL Ear. t. 

 28, 29. Led^b. Ic. Fl. Hoss. t. 399. Wight, Jc. t, 1810. Hook. Fl. Bor. Amer. t. 174; Ic. PL 

 t. 1245. 2. Acetosa. Herbse suffruticcs frnticesvo, foliis Ksepius plus minus liastatis sagittatisve, 

 auriculis baaeos acutis. Flores soepo polygunii. Periantiiii fructiferi segmenta interiora ssepe valdo 

 aueta venoso-scariosa, semper iutegerrima et nimquam granuUfera. Hagne, Arzneig. xiii. t. 6. Jacq. 

 Ic. Bar. L 67 ; Hort. Vind. iii. L 93. Land), in Trans. Linn. Soc. x. t. JO. Cav. Ic. t. 22. Sihth. 

 FL Gr<sc. L 346, 348. Jauh. ct Spach, lU. PL Or. t. 106. Grant in Trans. Linn. Soc. xxix. L 90. 

 Acetosa, Neck. Eleni. ii. 214. Characteres tameu supra dati interdum incerti. In i?. Lunaria, B. 

 vesicaria, B. cordata, etc. ad Acetosam relatis, folia basi ssDpissimo obtusissima v. obtuse eordata, et 

 fructus B. venoscs aliarumque nonnullarum scctionis Laj)aihl Acdosam rcfcruut. 



B. ocetosella, Linn., Sibth. Fl. Greec. t. 319, species fere cosmopolitana, seepe Acetones relata, 

 in Prodrome pro sectione distiucta recepta est, fioribus ssepius dioicis paniculatis, periautliio 

 fructifero pai-uni aucto, segmcntis inturioribus nuci subglobosse arete appressis eamque non 

 snperantibus. 



B. hucephaloj)7toriis, Linn., Cav. Ic. t. 41 ; Sibth. Fl. Grsec. t. 345, hcrba annua hnmilis, in 

 regione IVIediterranea frequens, insignis est pedicello fructifero rigido superne dilatato recurve, 

 perianthio circa fructum rigido, segmentis nunc uno solo nunc 2 v. 3 raldc auctis aculeato-dentatis 

 non granuliferis. 



20. Bmex, Neck. EUm. ii. 214. (Vibo, Mcmch^ Meth. 318. Centopodinm, Bvrch. Trav. 

 i. 340.)— Flores monoici. $: Perianthium 5-G-partitumj segmentis requalibus patentibus. 

 Stamina 4-G, filameiitis filiformibus ; anthcrse ovata;. FL $ : Perianthium urceolatum, 

 tubo ovoideo, limbi lobis G 2-seriatis. Ovarium tubo inclusum, 3-gonum ; styli 3, 

 breves, patentes, in stigmata fimbriato-lacera dilatati. Perianthium fructifentm aiictiim 

 diiris.simiim, tubo 3- v. G-angulato inter angulos transverse lacuncso; lobi exteriores 

 patentes spinescontes, interiores orccti, latissimi v. angustiores, obtusi miitici v.' aristati. 

 Nux tubo arete inclusa at libera, acute 3-gona, pericarpio membranaceo v. vix crustaceo. 

 Semen subteres ; embryo valde incumbenti-arcuatuSj lateralis v. fere pcriphericus, coty- 

 ledonibus angustis radicula longioribus. — Herba) (annure ?) rigiduhe. Folia alterna 

 longiuscule pctioUita, ovata, integcrrima v. sinuato-subdeutata ; ocre^e membranaceo- 

 scariosoe, mox lacerai v. evanidre. Florum fasciculi axillares v. superiores folio florali 

 abortiente racemosi. Flores ^ in fa-sciculis superioribus in pedicellis filiformibus articulati 

 $ in fascicnlis inferioribus arete sessilcs. 



Species v. fortn varietates 2, altera regionis Mcditerraneae incola, altera AustroAfricana etiam in 

 Australia inquilina. Meissn. in I)C. Prod. xiv. 40. Sihth. FL Gr(£c. t. 347 {Bumcx). 



TrIBUS V. COCCOLOBE^E. 



21. nxuetalenbeckia, Meimi. Gen. PI. 31C, Comm. 227. (Sarcogonum, Don in Siveet. 

 Hort. Brit. ed. 3, ex IJndl.)— Flores polygamo-subdioici. Perianthium alte 5-fidum, lobis 

 segmentisve subte<iualibus v. 3 exterioribus paullo mojoribus, fructiferum srepius basi v. 

 imdi(^ue camoso-incrassatum v. succulentum. Stamina 8, basi perianthii affixa, fila- 

 mentis filiformibus, antheris ovatis, v. in fl. $ ad starainodia brevia reducta v. 0. Ova- 

 rium 3-gonum, in fl. ^parvum sterile v. 0; styli 3, breves, nunc brevissimi, apice in 

 stigmata late capitata sublobata v. fimbriata dilatati. Nux obtuse v. acute 3-gona, peri- 

 jinthio plus minus camoso v. succulento velata v. siepe apice exserta, pericarpio crustaceo 

 V. coriaceo. Semen srope 3-sulcum v. su'b-3-lobum ; embryo excentiicus v. lateralis 

 incuiubcnti- v. accumbcnti-lncmvus, cotyltdonibus angustis oblongisve. — Frutices v. 



