660 BALSAMINACEAE 



5. Geranium Caroliniinum L. Annual or biennial. Stem simple below and erect, 

 or branched at the base, the branches ascending or spreading, more or less glandular-pubes- 

 cent : leaf-blades 3-6 cm. broad, reniform or orbicular-reniform in outline, slightly 

 angular, the main segments cleft or parted into oblong or linear-oblong lobes : peduncles 

 and pedicels relatively short, thus causing the flower-clusters to be somewhat congested : 

 outer sepals ovate, sometimes broadly so, 6-10 mm. long, each with a rather long awn-tip : 

 petals pink or whitish, about as long as the sepals : carpel-bodies 3-3.5 mm. long, pilose 

 Avith erect hairs : style-column 12-18 mm. long, with somewhat spreading often glandular 

 hairs : seeds reticulated. 



In dry soil, southern British America and the United States. Also in Mexico and Bermuda. 

 Spring and" summer. 



6. Geranium Langloisii Greene. Resembling G. dissedum in habit, but stouter : 

 leaves with relatively larger and less finely cleft blades : inflorescence not congested as in 

 O. Caroliniamnn, copiously villous-hirsute, but the glands of the hairs inconspicuous: 

 corolla pale rose-purple : seeds reticulated. 



In sandy soil, southern Louisiana. Spring. 



7. Geranium maculatum L. Stems erect, 2-6 dm. tall, from thick astringent root- 

 stocks, pubescent with spreading or retrorse hairs, forked above. Leaves mainly basal ; 

 blades 5-12 cm. broad, reniform or suborbicular in outline, deeply 3-7-parted, the segments 

 toothed, incised or lobed ; petioles of the basal leaves several times longer than the blades : 

 cymes open : peduncles 2-flowered : sepals 5, elliptic or elliptic-lanceolate or oblong, 8-10 

 mm. long, awn-tipped, ciliate, villous especially near the edges : corolla rose-purple, 2.5-3 

 cm. broad : petals 5, entire, pubescent at the base : carpel-bodies 3-3.5 mm. long, hirsute : 

 style-column 2-3 cm. long, finely pubescent : seeds minutely wrinkled. 



In rich woods, Newfoundland to Manitoba, Georgia, Alabama and Nebraska. Sprfng and summer. 



2. ERODIUM L'Her. 



Annual or perennial, caulescent or scapose herbs, or shrubby plants. Leaves opposite 



or alternate, subtended by stipules : blades lobed or pinnately dissected, petioled. Flowers 



solitary or umbellately disposed at the end of axillary peduncles. Sepals 5, imbricated. 



Petals 5, imbricated, alternating with 5 glands. Stamens 5, alternating with 5 staminodia : 



filaments slender. Ovary 5-lobed, beaked : styles united. Capsule 5-lobed, each lobe 



separating elastically from an axis and rolled back with the curling style. Seed solitary 



in each cavity. Endosperm wanting. Stork' s-bill. Pine Needle. 



Leaf-blades pinnatelv divided : petioles pubescent with spreading hairs. 1. E. cicutarnim. 



Leaf-blades palmately lobed : petioles densely puberulent. 2. E. Texanum. 



1. Erodium cicutarium (L. ) L'Her. Annual or biennial, villous, somewhat viscid. 

 Stems simple, or branched at the base ; branches tufted, erect or ascending, usually forked 

 above : leaves often numerous ; blades pinnately divided, 5-16 cm. long, the segments 

 finely and sharply pinnatifid ; petioles shorter than the blades, or upper blades sessile : 

 peduncles longer than the subtending leaves, topped by a 2-1 2-rayed umbel-like cyme : 

 sepals oblong, 4-5 mm. long, apiculate : corolla pink or purple, 8-10 mm. broad : petals 

 5, oblong-obovate, hardly longer than the sepals, entire : carpels pubescent, 4-6 mm. long ; 

 beak slender, 2-4 cm. long. 



In waste places. Nova Scotia to Oregon, New Jersey, Texas and Mexico. Adventive or naturalized 

 from Europe. Spring to fall. 



2. Erodium Texanum A. Gray. Annual or biennial, strigose, not viscid. Stems 

 more or less diffusely branched at the base ; branches spreading, 5-31 cm. long, usually fork- 

 ing : leaves several ; blades ovate in outline, palmately lobed, 1-3 cm. long, cordate, the 

 lobes toothed or incised ; petioles longer than the blades, except the upper ones : pedun- 

 cles longer than the subtending leaf, topped by a several-rayed umbel-like cyme : sepals 

 elliptic, 6-10 mm. long, puberulent, awn-tipped : petals cuneate or obovate-cuneate, often 

 nearly twice as long as the sepals : carpels 7-9 mm. long, silky ; beak slender, 3.5-7.5 cm. 

 long. 



In dry soil, Texas to California and Lower California. Spring and summer. 



Family 2. BALSAMINACEAE Dumort. Jewel-wekd Family. 



Herbs, with succulent tissues. Leaves alternate or sometimes opposite : 

 blades simple. Flowers perfect, irregular, unsymmetrical, loosely disposed, 

 sometimes accompanied by cleistogamous ones. Calyx of 3 sepals (2 suppressed) ; 

 posterior one petaloid, saccate and spujred ; all deciduous. Corolla of 5 petals, 



