.Skeni^iecE.] CXXXIV. POLYGONACE^. 95 



transversa connexis. Flores minimi, ad axillas sessiles. Bractea fructifera valde aucta 

 lataque cseterum quam maxime varia, seepius argute dentata et cristis v. alls 2 dorsalibus 

 nunc latissimis integerrimis dentatisve nunc parvis v. fere obsoletis instructa, et interdum 

 periauthium ipsum circa fructum leviter scarioso-accreta. 



Species 2, Californicse. Benth. in DC. Prod. xiv. 27. Torr. et Gr. in Proc. Amer. Acad. yiii. 200. 

 Hook, et Am. Bat. Beech Voy. t. 90. 



9. Koeni^ia, Linn. Mant. n. 1241.— Flores fasciculatl, singiili bractea hyalina pedicello 

 basi adnata demum parum aucta stipati. Perianthium alte 3-fidum, rarius 2-fidum v. 

 4-fidum. Stamina seepius 3, supra lobos affixa, interdum 1, 2 v. 4, filamcntis brevibus. 

 Ovarium obtuse 3-gonum v, compressum; styli 3 v. 2, brevissimi, apice aubcapitato- 

 stigmatosi. Nux 3-gona v. compressa, pericarpio tenui. Embryo excentricus, plus 

 miiraa arcuatus, cotyledonibus ovatis v. orbiculatis, radicula accumbenti-ascendente. — 

 Herbee annuse, tenerrimse, ssepe nanse, glabr?e. Folia ima opposita vagina brevi connexa, 

 sub ramis solitaria petiolo basi leviter dilatato, suuima plurima subverticillata, omnia 

 parva, obovata, iutegerrima. Flores ad axillas pauci, intra folia ultima plures fasciculati, 

 minimi, in pedicello articulati. Bractea hyalina tenerrima ad basin pedicelli, nunc minima 

 post anthesin immutata, nunc demum aucta, semper tamen pedicello brevior. 



Species 2, inter se valde affines nisi unius varietates, altera in regionibua areticis et subarticis 



hemisphserii borealis utriusque orbis et in montibus Sibirieis et Scopulosis late diffusa, altera 



Himala.ic&.—Meissn. in DC. Prod. xiv. 82. Geertn. Fncct. t. 128. Lam. Illustr. t. 51. Bene, in 

 Jacquem, Voy. Bot. t. 14.7. 



TrIBUS III. EUPOLYGONE^. 



10. Calligronum, Lhvn. Ge.i^ n. 680. (Ptcrococcus, Pall. Voy. ed. Fi; ii. 547, t. IG. 

 Pallasia, Linn. /. Suppl. 37. Calliphysa, Flsch. ct Mey. Ind. i. Sem. Hort. Petrop. 24.)— 

 Flores hermaphroditi. Perianthium 5-partitum, segmentis subiequalibus planis, post 

 anthesin immutatum v. marcesccns. Stamina (12-18), filamentis subulatis basi in 

 discum hyi^ogynum connatisj antlierse ovatse. Ovarium 4-gonum; styli 4, breviter 

 v. longiuscule liliformes, apice capitato-stigmatosi. Nux perianthio subpersistente multo 

 longior, 4-gona, angulis in longitudinem rectis v. plus minus spiraliter tortis, in alam 

 simplicem v. duplicem productis, integris serratis v. varie cristatis v. setis liberis v. varie 

 dilatato-connatis appendiculatis v. echinatis. Semen oblongum, teres v. 4-gonum, testa 

 tenui ; embryo (in speciebus paucis examinatus) centralis, rectus, teres, cotyledonibus 

 angustis radiculaj subiequilongis.— Frutices ramosissimi, ramis flexuosis rigidis v. novellis 

 tenuibus alternis fascicnlatisve. Folia altema, anguste linearia v. subulata, nunc minima ; 

 ocrea brevis, membranacea. Flores ad axillas intra bracteam ocreiformem solitarii 

 v. fasciculati, in pedicello brevi articulati, ebracteolati. Nuces sjepius valde accrete. 



Species ad 20. locorum aridorum v. arenosiorum Africse borealis et Asise occidentalis et mediae 

 incolse. Meissn. in BC. Prod. xiv. 28 (subtribus Calligone(p). Bors^cz. Ami Casp. Calliy. in 

 Mem. Acad. Petersh. $er. 7, iii. cum iahh. 3. Boiss. Fl. Or. iv. 998. Pall Fl Boss. t. 77, 78 

 (Pallasia). G(srtn. f. Fruct. iii. t 184 {Pallasia) et 215 {Calliyonum), Jaub. et Spach, III. PL 

 Or. t. 471. 



Genera tria in Prodromo recepta a Burszczo.-wio I.e. optime scmtata et in unum juncta. Auctor 

 sectiones 4 proponit ad fructus alarum setarum appendiciumve forraam distinetas, Habitns tamen 

 aliique characteres in toto genere similes sunt v. variationes paucas prsebent, ad diversitates fructus 

 vix respondentes, et sectione,s nirais artificiales remanent. 



11. Pteropyrum, Jauh. et Spach, III PI. Or. ii. 7, t 107 ad 109.— Flores herma- 

 phroditi. Perianthium 5-partitum, segmentis parum insequalibus v. 2 exterioribus paullo 

 minoribus, post anthesin immutatum v. marcescens. Stamina 8, filamentis filiformibus 

 annulo pilose affixia ; antherse oblongso. Ovarium 3-goni^m, acuminatum; styli 3, 

 brevissimi, late capitato-stigmatosi. Nux late 3-alata, basi lata, apice in rostrum con- 



