g2 Walther Wangerin. — Cornaceae. 



(4 837) 49: Audubon Birds (1837) t. 193; Torr, et Gray, Fl. N. Am. I. (1838 io 

 653; Eat. et Wright, North Am. bot. (1840) 209; Spach, Ilist. veg. phan. VIII. (1839) 

 1 03; Hook. Fl. bor. am. I. (1840) 277; Hook, et Arn. in Hot. of Beech. Voy. I. (1841) 

 125; Ledeb. Fl. ross. II. (1844/46) 377; Seem. Bot. Herald (1852/57) 32; Pritzel, 

 Ind. Icon. Bot. I. (1855) 303; Fellm. Ind. Kola n. 77 et Ind. Lappon. (1864—69) 

 n. 68; Rieh. Arct. Exped. (1851) 429; Hook. f. Arct. PI. 93; Gray in Proc. Acad. Philad, 

 (1863) 63; Rothr. Fl. Alaska (186 8) 447; Buchenau in Flora XLII. (1859) 8 7 ff.; Franchet 

 et Savat. Enum. pl. Jap. I. (1875) 197; Lange, Fl. Groenl. (1887) 127; Coult. et 

 Evans in Bot. Gaz. XV. (1890) 32; Kupffer in Verhandl. Bot. Ver. Prov. Brandenb. 

 \I.\I. (1904) 61 ff. — C. biramis Stokes, Bot. Mat. Med. I. (181 2) 22 1. — G. borealis 

 Gorter, Fl. ingr. (1761) 2 4. — G canadensis Willd. ex Ledeb. Fl. ross. II. (1841 i<, 

 377. — G. herbacea Oeder, Fl. dan. (1766) t. 5; Pallas, Fl. ross. (1784) 52; Steller 

 in Pallas, N. Nord. Beitr. II. 300. — Chamaepericlymenum prutenicum seu peri- 

 clymenum seeundum Clusius, Rar. pl. hist. (1601) 87, t. 88; Gerarde et Th. Johnson 

 herb. or. gen. hist. of pl. (1633) 1296; Parkinson, Theatr. bot. (1640) 1461; Dillen. 

 Hort. Eltham. (4732) 408, t. 91. — Chamaepericlymenum suecicum Aschers, et 

 Graebn. Fl. nordostd. Flachl. (4 898) 539. — Periclymenum minus Tabern. Ic. pl. 

 (1590) 898. — Periclymenum humile Bauhin, Pinax (1671) 302. — Comics herbacea 

 ramulis binis L. Fl. läpp. (1737) 36, t. 5, f. 3; Fl. suec. (1755) 48. — Herba, 

 rhizomate pennae crassitudine repente vel suberecto, passim cataphyllis squamiformibus 

 oppositis praedito et saepissime ex nodis radicigero. Gaules graciles, usque ad 0,25 m 

 longi saepius sat minores, in formis nanis 0,0 6 m melientes, e rhizomatis apice sueto 

 fasciculatim provenientes, subteretes vel remote quadranguli, disperse breviterque appresse 

 pilosi vel glabrati, saepius vinoso-rubentes. Folia stricte opposita, sessilia, membranacea 

 vel rarius subchartacea, laete viridia subtus saepius manifeste glaucescentia, supra pilis 

 perappressis juveneula dz dense adulta sparse obsita, subtus glaberrima, bene vel ovato- 

 elliptica vel rarius oblonga, basi rotundata vel rarius brevissime acuta, apice nunc sub- 

 rotundata nunc late acuta, e basi palmatim 5 — 7-nervia, nervis prineipalibus manifestis 

 subtus paulo prominulis, seeundariis omnino inconspieuis. Folia summa semper bina, 

 in axillis ramulos primum valde abbreviatos demum manifestos pluries decussatim folii- 

 geros proferentia. Inflorescentia terminalis, peduneulo brevi valde appresse piloso praedita, 

 folia summa subaequans vel paulo superans, deflorata ramulis lateralibus elongalis 

 manifeste superata, involucro 4-phyllo albo vel pallide sulfureo insignis; bracteae in- 

 volucrantes late ellipticae vel ovatae vel rarius subrhomboideae, basin versus breviter 

 angustatae, apice rotundatae vel acutiusculae integerrimae 5-nerviae glaberrimae; flores 

 8 — 25-ni subumbellati 4 — 2 mm longe pedicellati quam involucrum dimidio vel plus 

 breviores; ovarium ovoideum, apice minute vel vix constrictum, leviter appresse pilosum 

 1 — 1,5 mm longum; sepala latiuscule triangularia apice acuta 0,4 mm longa; petala 

 longe triangularia apice acuta purpurea post anthesin reflexa glaberrima, 4,5 — 4,8 mm 

 longa, 0,6 mm lata, exteriora (ad inflorescentiae ambitum speetantia) cuiusque floris 

 cauda tenuissima et acutissima dorso paulo infra apicem inserla insignia; staminum 

 filamenta quam petala paulo breviora, antherae versatiles ellipticae 4 mm longae; discus 

 conspieuus pulviniforrnis, apice late obtusus, glaber, Stylus cylindricus glabeiTimus: 

 si.imina subaequans, stigmate obtuso. Drupa breviter pedicellata, |»urpurea, ovoidea 

 sepalis sivloque persistentibus coronata glaberrima, putamine paulo vel vix manifeste 

 compresso leviter costulato 3 mm longo. 



Verl» rei tung boreal-circumpolar: 



Einzeln in La&rador und den benachbarten Inseln (Resolution Isl., New Found-i 

 land, Ifiqueloo); häufig in Grönland auf feuchten grasigen Felsen (bis zum 65°ndlj 



Island; Pftr Öer; die Sudgrenze in Europa (nach Kupffer im wesentliche! 

 mit der 14° Isotherme des Juli zusammenfallend) verläuft von den Gebirgen SchotÜandi 

 und Nord-Engl;m«ls (Cheviot-Gebirge ca. 55° n. Br.) zur Nordseeküste von Ostfries- 

 land, Oldenburgi Hannover, Schleswig-Holstein (ca. . , ')3 1 / 2 () n. Hr.) und spring! dann 

 auf Kolberg in Pommern (54° io' d. Br.}, umfassl die Inseln Öland, Gollaml und Dago 



