2 GERANIACEAE 



late, cleft or toothed; peduncles slender, S-8 cm. long, 1-flowered, 2-bracted near the middle; 

 sepals oval, (i-l mm. long, minute, awn-tipped ; petals white with purple veins, slightly exceeding 

 the sepals; fruiting style-beak 10-13 mm. long, carpel-bodies 3-3.5 mm. long, puberulent and 

 sparingly hairy ; seeds minutely reticulate. 



Sparingly naturalized in the Pacific States, also New York and Illinois. Type locality: Siberia. May-June. 



2. Geranium molle L, Dove's-foot Geranium. Fig. 2964. 



Geranium molle L. Sp. PI. 682. 1753. 



Annual, the stems widely branching from the base, slender, decumbent or ascending, 1-5 dm. 

 long, whole plant soft-villous. Leaves reniform-orbicular, 15-35 mm. broad, generally cleft only 

 to a little below the middle; the divisions 7-11, obovate or cuneate, 3-5-toothed at the apex; 

 peduncles 2-flowered ; sepals 4-5 mm. long, not awned ; carpel-bodies distinctly wrinkled trans- 

 versely, glabrous ; fruiting style-beak 10 mm. long, sparingly pubescent ; seeds smooth or striate. 



Lawns and pastures, naturalized from Europe, Humid Transition Zone; Vancouver Island to southern 

 California. Feb.-June. 



3. Geranium pusillum L. Small-flowered Geranium. Fig. 2965. 



Geranium pusillum L. Sp. PI. ed. 2. 957. 1763. 



Annual, the stems slender, weak, widely branching from the base, 1-5 dm. long, whole plant 

 pubescent or short-villous. Leaves reniform-orbicular, 10-35 mm. broad, deeply divided into 7-9 

 divisions, these oblong, entire or 3-toothed; peduncles short, 5-15 mm. long, 2-flowered; pedicels 

 10-25 mm. long ; sepals 3-4 mm. long, awnless ; petals pale purple, little exceeding the sepals, 

 notched ; carpel-bodies pubescent or strigose, not wrinkled ; fruiting style-beak 8-9 mm. long ; 

 seeds smooth. 



Waste places, naturalized from Europe, mainly Humid Transition Zone; British Columbia, Washington, 

 Oregon and coastal northern California; also eastern United States and Canada. May-Sept. 



4. Geranium dissectum L. Cut-leaved Geranium, Fig. 2966. 



Geranium dissectum L. Amoen. Acad. 4: 282. 1760. 

 Geranium laxum Hanks, N. Amer. Fl. 25: 9. 1907. 



Annual, resembling the preceding species, the stems usually more slender, decumbent or as- 

 cending, retrorsely pubescent. Leaves deeply cleft, the inain divisions parted into linear segments ; 

 pedicels glandular-hirsute ; sepals 7-8 mm. long including the awn-tips, which are about 2-3 mm. 

 long; petals purple, about equaling the sepals; fruiting style-beak about 12 mm. long, glandular- 

 villous ; carpel-bodies 2-2.5 mm. long, hirsute; seeds deeply reticulate. 



Moist meadows and waste places, Transition and Upper Sonoran Zones; frequent in the Pacific States, and 

 possibly native, but scarcely distinct from the European type. Type locality: southern Europe. April-Oct. 



5. Geranium carolinianum L. Carolina Geranium. Fig. 2967. 



Geranium carolinianum L. Sp. PI. 682. 1753. 



Annual or biennial, the stems usually branched below, erect or ascending, more or less glan- 

 dular-pubescent. Leaves reniform-orbicular, 3-6 cm. broad, deeply divided, the main divisions 

 cleft or parted into oblong or oblong-linear lobes ; peduncles and pedicels short, the flowers 

 usually in compact clusters at the ends of the branches; sepals oval, 6-10 mm. long, 3-4.5 mm. 

 wide, the awn-tips about 2 mm. long ; petals pale rose or white, about equaling the sepals ; fruit- 

 ing style-beak 12-18 mm. long, pubescent with spreading often somewhat glandular hairs ; carpel- 

 bodies 3-3.5 mm. long, pilose with erect hairs; seeds finely reticulate, 1-1.5 mm. thick. 



Moist meadows or banks, Transition and Upper Sonoran Zones; throughout the Pacific States and extending 

 across the continent. Type locality: Carolina. April-Oct. 



Geranium sphaerospermum Fernald, Rhodora 37: 298, pi. 372, figs. 1-5. 1935. Very similar to G. carolini- 

 anum; rnature sepals 5-8 mm. wide, 5-nerved; seeds subspherical, 2-2.5 mm. thick. Washington south to northern 

 California and east to Ontario and New York. Type locality: Great Cloche Island, Ontario. 



6. Geranium columbinum L. Long-stalked Geranium. Fig. 2968. 



Geranium columbinum L. Sp. PI. 682. 1753. 



Annual, the stems slender, decumbent or prostrate, sparsely pubescent with appressed hairs. 

 Leaves orbicular-reniform in outline, 5-9-parted, the main divisions rather narrow, variously 

 cleft into linear segments ; peduncles and pedicels slender, usually longer than the leaves, re- 

 trorsely pubescent; sepals awn-tipped, 10-12 mm. long; petals rose-purple, slightly exceeding the 

 sepals; style-beak 15 mm. long, strigose; carpel-bodies 3-3.5 mm. long, smooth and glabrous; 

 seeds prominently reticulate. 



Sparingly naturalized in Washington and Oregon, also in the eastern United States. Type locality: Europe. 

 May-Aug. 



