— 73 — 



■basim versus incrassatis, foliis, linearibus angustioribus 2 — 5 mm latis, ochreis cilis brevissimis 

 (c. 0.4 mm longis) praeditis, racemis anguste fiiiformibus, cymis inferioribus axillaribus, 

 nucibus 1-6 — 1-75 mm longis differt. 



Racemi plurimum cylindracei, densiflori, spicaeformes. 

 Species annuae. 



(0. Polygonum persicaria L., Spec.pl., 361 (1753); ed. II, 518«; WiUd., Spec. pl., II, 

 446; Wallr., Sched., 188; A. Br. in Flora VII (1824), 360; Reich., FI. Germ., 571 (pp.); 

 Koch, FI. Deutschl., III, 55; Syn., 617; ed. II, 711; Gren. Godr., Fl. Franc, UI, 47; Meisn. 

 in DC, Frodr., XIV 1, 117; Beck, FI. Nied. Ost,, 323. — Reich., Icouogr., V, 55, f. 684; 

 FI. dan., IV. t. 702; Hayne, Arzneigew., V, 22; Engl. bot., t. 756; Schultz Archiv. (1855), 

 138. — Persicaria mifis Gilib., Exerc. phyt., II, 431 (1792). — Pers. maculosa Gray, Nat. 

 arr. brit. pl., U, 269 (1821). — Pers. vulgaris Webb et Moqu. in Webb Berth., Phyt. can., 

 III, 219 (1836 — 1847). — Pers. rivularis Opiz, Seznam, 72. — Pers. puUcarioides Mont., 

 FI. Jura sept., 209 (1856). — Polygonum persicaria v. latifolia Roth., Tent. FI. Gei-m., I, 

 173 (nom. soL), II 1, 452(1789); v. immanulatumViiiGxm., FI. Lips., 292(1888); v. densiflorum 

 Neilr., FI. Wien, 203 (1846); FI. Nied. Ost., 296 (1859); Celak., Prodr. Fl. Bohm., 164; = 

 Duftschm., Fl. Ob. Ost., II 1, 385 (1876); v. vulgaris Kittel, Taschenb., 3. Aufl., 303; v. tijpi- 

 cum Posp., Fl. Ost. Kiist., I, 386 (1897). — P. rivulare Roth, Enum. pl. Germ., II, 185 

 (1827) „Nuces fere omnes triquetrae.' — P. maculatum Raf., FI. Ludov., 29 (1827). — 

 P. nudicanle Salisb., Prodr., 259 f. Gray. — Annuum. Radix fusiformis. Caulis erectus, 

 ascendens v. procumbens, ramosus, rarius simplex, glaber, internodiis basim versus saepe sensim 

 incrassatis. Ochreae tubulosae, cauli arcte appressae, pilis brevibus apj)ressis saepe 

 crispulis subscabris tectae, in margine ciliatae. Folia lanceolata vel oblongo-Ianceo- 

 lata, plurimum longe acuminata, infima modo rotundata, in media paiie latissima, in petioluni 

 brevem v. brevissimum attenuata, infra in nervis et in margine, rarius utrinque breviter 

 appresse pilosa, plurimum macula nigra notata. Racemi terminales et axillares, saepe pani- 

 culati, pedunculati, erecti, cylindracei vel oblongi, densiflori vel in infima modo parte remoti- 

 flori. Cymae semper ochreis breviter ciliatis fultae. Pedicelli perianthio breviores. Perianthium 

 2 demum — 3 mm longum; ejusdem phylla eglandulosa, limbum versus rosea, purpuras- 

 centia vel albida, basim versus viridia, nervis fructus tempore non prominentibus. 

 Stamina 6 (rarius 7, 8). Stylus 1, bifidus, ramis divergentibus. Nuces perianthio subaequilongo 

 cinctae, plurimuni lenticulares et in uno latere gibbosae, rarius triquetrae, acutae, laeves, 

 nigrae, nitentes, 2 — 2"5 mm longae. 



Formae sequentes observantur: 



1. biforme Wahl., FI. suec, I, 242 (1824) p. spec; Fries, Nov. fl. Suec Mant. II, 28 

 (1839). — V. elatum Gren. Godr., I. c (1855); clatius Meisn., I. c, 118 (1856); erectum Glaab 

 in Deutsch. bot. Mon. (1894), 23. — Planta major, fii-mior. Caulis plurimum erectus, inter- 

 nodiis basim versus saepe conspicue incrassatis (= P. nodosum autorum ex parte non Pers.). 

 Folia majora, late lanceolata, longe acuminata, immaculata vel maculata (= maculosa DC, 

 FI. franc, III, 366). Racemi plures, longe pedunculati, paniculati, longiores, in apice saepe 

 acuti. Perianthii limbus plurimum roseus vel purpurascens (= rubellum A. Braun, I. c, 361). 

 In solo pingui, humidiore. 



2. angustifollum Beckh., FI. Westf., 773 (1893). Folia anguste lanceolata, utrinque 

 longe attenuata. Rarius. 



Icon. Fl. Germ. XXIV. (Autore Bcck). 10 



