

Oxalis. 157 



Atlantisches Nord-Amerika: Tennessee, bei Nashville, in lichten Wäldern 

 (Gattinger nach Small — Tjpus). 



Nota. Affinis 0. macranthae, a qua distinguitur habitu erecto et pubescentia patula copiosa, 

 et 0. recurvae, a qua differt habitu robustiore et pubescentia subhirsuta et inflorescentia folia 

 non conspicue superante et stylis non recurvatis (ex Small). 



2 47. 0. cymosa Small in Bull. Torrey Bot. Club XXIII. (1896) 267; Britt. et Brown, 

 111. Fl. II. (1897) 347, f. 22 56. — 0. corniculata Robinson in Journ. Bot. XXXXIV. 

 (1906) 390, non L. — Xanthoxalis cymosa Small, Fl. S. E. Un. States (1903) 668; 

 Small in North Americ. Flora XXV. 1. (1907) 55. — Ceratoxalis cymosa Lunell in Am. 

 Midi. Nat. IV. (1916) 468. — Rhizoma horizontale, fere tenue, \ i / 2 — 2 mm crassum, 

 pallide vel atro-fuscum. Caulis erectus vel procumbens ramis erectis, 2 — 10 dm altus 

 vel longus, laxe pubescens vel fere glaber, herbaceus, sulcatus, dense alterne foliatus, 

 exs. 2 mm crassus. Folia numerosa, trifoliolata, caulina, ad apicem vix numerosiora; 

 foliola glabra vel utraque facie sparsim pilis obsita, late vel latissime obcordata, saepe 



1 6 mm lata et 1 3 mm longa, basi dz cuneata, antice sinu satis acuto usque ad x / 4 — y 3 

 incisa; lobi rotundati; petioli foliolis 4 — 6-plo longiores, saepe 3 — 6 cm longi, graciles, 

 exs. y 2 mm crassi, sparsim molliter pilosi. Pedunculi axillares, caulini, glabri vel 

 sparsim pilosi, petiolis 1 */ 4 — 2y 4 -plo longiores, saepe 5 — 9 cm longi, apice umbellam 

 bilateralem 3 — 6-floram gerentes. Bracteae lineares vel lanceolatae vel ovatae, acutae, 



2 mm longae, pubescentes. Pedicelli breviter villosi, fructiferi non refracti. Sepala 

 3 — 4 mm longa, rh oblonga, obtusa vel rotundata, subglabra. Petala profunde lutea, 

 7 — 10 mm longa. Filamenta maiora glabra. Capsula cylindracea, ± laxa, 10 — 16 mm 

 longa, sparsissime pubescens, apicem versus sensim attenuata. 



Atlantisches Nord-Amerika, von Ontario bis Michigan, Florida, Ne- 

 braska und Texas: Maine (Fernald in PI. Grayanae a. 1908, n. 227!). — New York, 

 Bronx Park (Nash a. 1896, n. 405!), Cypress Hill (Heuser, Fl. Ver. St. a. 1899!). 

 Brooklyn (Brenning a. 1895!). — Pensylvanien, Lancaster Co. (Heller, PI. of Lanc. Co. 

 a. 4 901 !). — Washington (Steele!). — Virginia (Steele!). — Missouri, St. Louis (Riehl 

 a. 1841, n. 285!). — Illinois, Riverdale (Lansing, PI. of Lake Chicago Basin a. 1906, 

 n. 2625!), Catlin (Lansing, PI. of Illinois a. 19 12, n. 3510!), La Salle Co. (Greenman, 

 Lansing, Dixon, PI. of Illinois a. 1909, n. 144!, n. 162). — Ontario, Ottawa (Macoun, 

 ex herb. geol. surv. Canada a. 1898!). — Indiana, Wells Co. (Deam a. 1903!). — 

 Jowa (Pammel et Ball, PI. of Jowa a. 1896, n. 4!). — Nord-Carolina (Biltmore 

 Herb. a. 1897, n. 2921a!). — Maine (Fernald a. 1908, n. 227!). — Blühend Juni 

 bis September. 



248. 0. grandis Small in Bull. Torrey Bot. Club XXI. (1894) 475, t. 223. — O. re- 

 curva Trelease in Mem. Bost. Soc. IV. (1888) 89 (non EH.). — Xanthoxalis grandis Small, 

 Fl. S. E. Un. States (1903) 668; Small in North Americ. Fl. XXV. 1. (1907) 55. — 

 Rhizoma horizontale, 2 mm crassum, fuscum, 6 — 10 cm longum. Caulis erectus, 30 — 

 50 cm altus vel altior, pilis patulis sparsim pubescens, sulcatus, sparsim alterne foliatus, 

 herbaceus, exs. 2 mm crassus. Folia vix numerosa, trifoliolata, caulina, apicem versus 

 parum congesta; foliola laete viridia, margine angustissime brunneo-marginata, glabra, 

 margin e autem et ad venas faciei inferioris manifeste ciliata, late vel latissime ob- 

 cordata, saepe 30 mm lata et 23 mm longa, basi cuneata, antice sinu lato incisa; lobi 

 rotundati; petioli foliolis 4-plo longiores, saepe 6 — 8 cm longi, graciles, exs. 3 / 4 mm 

 crassi, sulcati, patule pilosi vel molliter hirsuti. Pedunculi axillares, caulini, sparsim 

 patule pilosi, petiolis 1 y 4 — 1 y 2 -plo longiores, saepe 8 cm longi, apice umbellam 3- 

 floram gerentes. Bracteae subulatae vel lineari-subulatae, acutissimae, 3—5 mm longae, 

 sparsim villosae. Pedicelli sparsim villosi, 1 y 2 — 2 cm longi; fructiferi non refracti. 

 Sepala herbacea, lanceolata, 4 J / 2 — 6 mm longa, pubescentia. Petala profunde lutea, 

 4 3 — 18 mm longa. Filamenta maiora pubescentia. Capsula cylindracea, robusta, 7 — 

 10 mm longa, sparsim pubescens, apice satis abrupte acuminata. 



Atlantisches Nord-Amerika, von Pennsylvanien bis Indiana, Georgia und 

 Alabama: Washington (Steele a. 1897!). — Nord-Carolina, Biltmore (Biltmore Herb. 



