Carex. 453 



160; Britton a. Brown, 1. c. 335 fig. 801; Fernald in Proc. Amer. A.-a.i. WWII. 

 (1902) 506. — 0. umbeUata var. riritm Dew. in \mer. Jmirn. Se. \. 1820 I. D. 

 fig. 13 et XL f 1 826) 317; Bailey in Bull. inn-, bot. Club XVI. (IS89) 219. — Hliizoma 

 caespites densos formans et breviter stoloniferum. Culmi numerosi intra folia abscon- 

 diti inaequaliter longi 2 — 15 cm alti setacei triipietri sin-sum scabriusculi. I'olia eulmos 

 longe superantia 1 l / 2 — 3 mm lata canalinilaio-plana earinala supra asp era Jaele viridja 

 subrigida, vaginae ini'criores brunneo-purpureae reticulatim assae marcidae. Spiculae 

 4 — 5, terminalis (f lineari-oblonga 6 — 12 mm longa subsessilis vel pedunculata, rcli.|uae 

 3—4 (rarius 1—2) Q ovatae 4—8 mm longae pauci- et subdensiflorae, superiors 

 1 — 2 spiculae q? approximatae scssiles. inforinres vel oiunos sula\elicales -_zz pedum-n- 

 latae erectae. Bracteae superiores squamiformes. Squamae Q nvafae vel laneeolafo- 

 ovatae cuspidatae vel acuminatae subinvolventes pallide fuseae vel omnino paOeacentei 

 viridi-carinatae. Utriculi squamas aequantes membranacei late ovales vel subobovati 

 obsolete Irigoni demum subinflati 3 — 4 mm longi stramineo-virides tenuiter pubescentes, 

 nervis 2 marginalibus elevatis percursi, in stipitem spongiosum longe attenuati, in 

 rostrum longum eonicum marginibus scabrum antiee linea longitudinali notatum ore 

 hyalino bidentulum subabrupte contracti. Nux arete inclusa obovata. Stigmata 3. 



Nordamerika: Sandige Hiigel und steinige Hange in Canada: von Prinz Edward 

 Insel und Neuschottland, Ontario, Saskatchewan bis Britisch Columbia. In den Ter- 

 einigten Staaten: von Neuengland (Brainerd!, Faxon!, Pringie!), und New York 

 (Sartwell n. 104!, A. Gray n. 192!), Michigan, Minnesota westwarts bis Oregon, sud- 

 warts bis zum Columbia-District und Indian-Territorium. 



forma tons a Fernald, 1. c 507. — C. umbeUata Boott, 1. c. t. 293. — Utriculi 

 glabrescentes. 



Z. B. J. Macoun n. 16675!, Fernald in PI. exsicc. Grayanae n. 76! 



Var.. p. brevirostris Boott, Illustr. II. (I860) 99 t. 294: Bailey, 1. c. 125; 

 Fernald, 1. c. 507. - C. globosa W. Boott in S. Wats. Hot. Calif. II. (1880) 246 



(Engelmann!). Am haufigste 



( uln 



Var. y. depressa Kiikenth. var. nov. — Planta nonnisi 1- 

 intra folia absconditus. Spiculae omnes approximatae, Utriculi brewomrau. 



Peru: La Oroya 4300 m (A. Weberbauer n. 2617 ex p.!). 



Var. d, globosa (Boott) Kiikenth. — C. globosa Boott in Proc. Linn. Soc. I. 

 (»84o) 259 et, in Trans. Linn. Soc XX. (1846) 125 et in Illustr. IV. (1867) 188: 

 Bailey, 1. c. | 2 3" W. Boot! in S. Wats. But. Calif. II. tsso 246 pnriim. - spiculae L 

 oblongae laxiflorae. Squamae Q marginibus fuseae dorso late virides. Utriculi squamas 

 superantes plurinervosi caeterum ut in forma tjpiea. 



Nota. C. umbeUata hj ylvantea [onnm. 



421. C. subumbellata Meinsh. in Acta Horli petropol. 3 

 Rhizoma dense caespitosum. Culmus 8 — 12 cm alius gracilis tr 

 cuius. Folia culmum subaequantia 3 mm lata marginibus rev 

 nervis aspera laete viridia rigidula, vaginae brunncae. Spiculae 

 oblonga 8 — 9 mm longa breviter pedunculata, reliquae 3 Q oblc 

 densiflorae, superiores spiculae tf approximatae exserte pedunc 

 longe bracteata. Bracteae sctareae breves vaiu'nantes. Squaim 

 r astaneae carina viridi scabra pen-ursae. I'tri- uh squamas acq 

 branacei obovato-oblongi 3 mm longi subinllato-lrigoni pallid,- 



