Erodicm. GERANIACE^. 207 



florum the hairs are longer and more Scattered, occupying the lowrr half of 

 the upper surface ; in G. erianthuni tlie dense viliosity is situated on the 

 edges of the petals near the base. 



♦ * Annual. 



'^ 4. G. Caroliniamim (Linn.) : stem diffusely branched ; leaves deeply 

 5-lobed or parted ; segments incisely lobed or toothed ; peduncles mostly 

 short and rather crowded at the summit of the branches ; petals emarginate, 

 about the length of the aristate-mucronate sepals ; carpels hairy ; seeds oval, 

 minutely reticulated.— Walt. Car. p. 175 ; " Cav. diss. t. 84 ^ 124" ; 

 Michx. jl. 2. p. 28 ; Ell. sk. 2. p. 157 ; Hook. I. c. ; Darlingt. I c. G. 

 lanuginoium, Jacq. hort. SchcpJib. 2. t. 140. 



In barren places from Canada! (lat. 52=, Hook.) to Florida! Louisiana! 

 west to the Rocky Mountains in lat. 52\ and California, Hook.d^ Am. in bot. 

 Beechey. Oregon, Nuttall ! March-June. — Root somewhat fusiform. Stem 

 4-12 inches high, pubescent below, villous above ; hairs retrorse or some- 

 times spreading. Sepals hairy. Petals rather obcordatc, rose-color. Car- 

 pels sometimes 2-seeded, ex Ell. — Variable in the lobes of the leaves, which 

 are usually short and obtuse. The seeds are not perfectly smooth, as is said 

 by De CandoUe, but minutely reticulated, though by no means so conspicu- 

 ously as in G. dissectum, to which it is closely allied. This last species is 

 considered as a native of North America by Pursh, probably on insuffi- 

 cient grounds : we have seen no native specimens. 



5. G. pusillum (Linn.) : stem procumbent, minutely pubescent ; leaves 

 reniform, the lowest suborbicular, deeply 5-7-lobed ; lobes 3-cleft (of the 

 upper leaves nearly entire) ; petals emarginate, about the length of the hairy 

 somewhat acuminate sepals ; carpels minutely pubescent ; seeds smooth. — 

 Torr.! compend. p. 25'i ; DC.prodr.l.p.G'id. G. malvsefolium, La7rt.^. 

 Fran. 3. p. 18. 



Road-sides, Long Island ! and Western part of the State of New-York ! 

 Introduced. May-July. — Stem extensively spreading. Flowers small, pale 

 purple. Alternate stamens usually sterile. 



' ' &. G. Rohertianum (Linn.): diffuse, hairy; leaves 3-5-parted to the 

 tase ; segments pinnatifid ; lobes mostly incised or toothed ; petals entire 

 (purple), twice the length of the mucronate-awned sepals; carpels reticulate- 

 rugose, glabrous ; seeds smooth.— Willd. sp. 3. p. 714 ; Pursh, Jl. 2. p. 449 ; 

 DC.prodr. 1. p. 644. 



Wet rocks, Canada! to Virginia! west to the Mississippi. June-Oct.— Calyx 

 1-3-ribbed. Petals spatulale. — Pursh's very incorrect remark that the Amer- 

 ican plant has not the same heavy and disagreeable odor as the European, 

 has induced De CandoUe to consider our plant as a distinct variety. 



X Doubtful species. 



7, G. ccBspitosum (James) : suberect, sparingly branched above ; radical 

 leaves reniform, deeply 5-7-cleft ; flower a little larger than that of G. Ro- 

 hertianum, but similarly colored. James, in Long's e.rped. 2. p. 3. 



On sandstone ledges at the base of the Rocky Mountains, Dr. James. 



2. ERODIUM. L'Her. ; Willd. sp. 3. p. 625. 



Sepals equal, regular. Petals 5, mostly equal. Stamens 10 ; the 5 exterior 

 (opposite the petals) shorter and sterile ; the perfect ones with a nectariferous 

 gland at their base. Persistent styles bearded within, at length spirally 



