j j 4 R. Knuth. — Geraniaceae. ' 



pinnatifido-serratis ; lamina foliorum summorum saepe tripartita, laciniis fere pinnati- 

 fidis, apice longe acuminatis. Pedunculi bini vel terni ex axillis duorum foliorum. 

 Bracteae 4 mm longae, lineari-subulatae. Pedicelli plerumque 7 — 12 mm longi, patenter 

 pilosi, nunquam autem glandulosi. Sepala lanceolata, mucronata, 8 mm longa. Petala 

 rosea vel roseo-vlolaeea, sepalis \ 1/2 — 2-plo longiora, integra. Stamina calyce vix 

 longiora; antherae magnae, 2 — 3 mm longae. Stylus leniter acuminatus; Stigmata 

 brevia, i — < Y2 "^"^ longa. 



Gemäßigtes atlantisches Nord-Amerika, von Canada und dem Seengebiet süd- 

 wärts bis Jowa, Mississippi und Florida; in lichten Gebüschen: New York (Heuser 

 a. 1899!). — Massachusetts (Robbins!). — New Jersey (Heuser a. 1865!, v. Rabenau 

 a. 1886!). — Ohio (Krebs n. 536!). — Indiana (C. Deam a. 1900!). — Illinois 

 (Brendel!). — Jowa (Ball in Herb, of Jowa State Coli. Agric. !). — Utah (Jones, 

 Fl. ofUtahn. 187l!). — Kentucky (Hook er!). — Missouri, anscheinend häufig (Rieh 1 

 n. 162!, W. Hoffmann a. 187l!, Eggert a. 1874!, 1875!, Engelmann n. 850!, 

 Bates a. 1898!). 



Nota. O. maculatiim ab omnibus speciebus affinibus boreali-araericanis distinctum est 

 caule superne ramoso erecto et pedicellis simpliciter pilosis (non glandulosis) et calycibus dense 

 pilosis, non autem hirsutis. 



100. G. Richardsonii Fisch, et Trautv. Ind. Sem. Hort. Petropol. IV. (1838) 37; 

 Torrey, Expl. a. Surv. for a railroad route (1856) 72; Trelease in Mem. Boston 

 Soc. Nat. Hist. IV. (1888) 74; A. Gray, Fl. North Amer. I. 1. (1897) 359. — 

 G. alhiflorum Hook. Fl, bor.-amer. I. (1833) 116 t. 40; Gurt. Bot. Mag. 59 (1832) 

 t. 3124. — G. Hookerianum Walp. Rep. I. (1842) 450. — G. pentagynum Engelm. 

 in Wisliz. Tour N. Mexic. (1848) 90. — G. gracilentum Greene; Rydberg, FI. Color. 

 (1906) 218. — Rhizoma verlicale, 4 — 10 mm crassum, fuscum. Caulis plerumque 

 soUtarius, basi simplex, 5 cm supra basin autem pseudo-dichotome squarroso-ramosus, 

 ramis elongatis, saepe tantum bifoliatis, leviter arcuatim ascendentibus. Folia basalia 

 plerumque paucinumerosa, saepe tantum nonnulla, graciliter petiolata, petiolis 10 — 17 cm 

 longis; lamina supra glabra, infra sparsim pilis brevibus adpressis obsita, ambitu rotun- 

 data, profunde sed non usque ad basin regulariter palmato-5 — 7-partita, lobis ambitu 

 oblongo-rhomboideis, pinnatifido-dentatis, dentibus acutiusculis, saepe productis, medio 

 saepe elongato-oblongo ; folia caulina media a basalibus non diversa, summa autem 

 saepe tripartita, lobis oblongo-linearibus dentatis. Pedunculi circ. 5 — 7 cm longi, 

 glabrescentes. Pedicelli 2 cm longi, pilis glandulosis, mox simplicibus (glandulis deciduis) 

 obsiti, sed non subviscosi. Stipulae bracteaeque oblongo-acuminatae vel lineares, acutae. 

 Sepala oblonga, inconspicue trinervata, extus pilosa, intus glabra, mucronata mucrone 

 1 Y2 — 2 mm longa. Corolla alba^ plerumque roseo-nervata, 2 — 2^2 ^m diam.; petala 

 oblongo-obovata, apice rotundata, calyce 1^4 — 2-plo longiora. Stamina calyce vix 

 longiora; filamenta purpurea. Fructus rostratus 20 — 22 mm longus; Stigmata 3 mm 

 longitudine non superantia; valvulae ± breviter pilosae; rostrum pilis pro parte glandu- 

 losis brevibus puberulum. Semina minute punctato-striatula. 



Im Gebiet des Felsengebirges und der Sierra Nevada von Saskatschewan 

 bis Californien und Mexiko, an lichten Stellen, 1600 — 2400 m: Saskatschewan 

 (Bourgeau in Palliser's Brit. N. Am. Expl. Exped. a. 1858!). — Yellowstone Park 

 (Ball a. 1884!). — Utah, auf den Wahsatch Mts., 2700 m (Jones, Fl. of Utah 

 n. 1173!). — Wyoming und Dakota (Griffiths, PI. e. civit. Wyoming et Dakota 

 a. 1897!), Albany Co, auf Antelope Basin (Aven Nelson, PI. of Wyoming a, 1900 

 n. 7491!). — Montana, Bozeman (Blankinship, Fl. Montan, a. 1905 n. 103!), — 

 Californien, auf den San Antonio Mount. (Hall, PI. South. Calif. n. 1332!), in San 

 Bernardino Co. (Parish, PI. South, Calif, n, 3784!, Hall, Fl. South. Color. a, 1906 

 n. 7520!), bei Yreka (Greene n. 316!). — Colorado, Spring Creek (Engelmann, 

 Rocky Mount. Fl. a. 1874!), Mancos (Baker, Earle et Tracy, PI. of South. Col. 

 n. 44!, 19ö!, 673!), Estes Park (Ball, It. bor.-americ. a, 1884!), Cassells in Platte 

 Canon 2700 m (Henry a. 1894!), bei Piedra (Baker, PI. South. Color. n. 449 sub 



