534 



GERANIACEAE (GERANIUM FAMILY) 



7. 0. comicuUta L. (Lady's Sorrel.) Erect or decumbent, apparently 

 flowering the first year but perennial by numerous slender pale runners; leaflets 



green or often purplish ; pedicels 

 subumbellately or at length cy- 

 mosely arranged at the summit of 

 the peduncle, ascending, sparingly 

 pubescent, the hairs spreading; 

 , VN petals yellow. ( 0. cymosa, Bushii, 



& rufa Small ; 0. stricta of many 



802. 0. cornioulata. 



auth., not L.) — Dry or moist open soil, a 

 very common weed. (Eu.) Fig. 802. 



8. 0. rdpens Thunb. Stems several, pros- 

 trate and creeping, the numerous erect 

 branches low, seldom 1 dm. high ; leaflets 

 small ; flowers small, 2-5 on very short at length defiexed pedicels. (O. corni- 

 ctilata of L., in part, and of many later authors.) — A weed, chieny in and 

 about greenhouses. (Cosmopolitan.) Fig. 803. 



0. repens. 



GERANlACEAE (Geranium Family) 



Plants with perfect regular 6-merous hypogynous flowers. Sepals imbricated 

 in the bud, persistent. . Glands of the disk 5, alternate with the petals. Stamens, 

 counting the sterile filaments, as many or commonly twice as many as the sepals. 

 Ovary deeply lobed; carpels 2-ovuled, l-seeded, separating elastically with their 

 long styles, when mature, from the elongated axis. Cotyledons plicate, incum- 

 bent on the radical. — Our species herbs with lobed or divided stipulate leaves, 

 and astringent roots. 



1. Geraninm. Stamens with anthers 10, rarely 5. The recurving bases of the styles or tails of 



the carpels in ft-uit nalced inside. 



2. Erodium. Stamens with anthers only 6. Tails of the carpels in ftuit bearded inside, often 



spirally twisted. 



1. GERAwIUM [Toum.] L. Cranesbili. 



Stamens 10 (rarely 5), all with perfect anthers, the 5 longer with glands at 

 their base (alternate with the petals). Styles smooth inside in fruit when they 

 separate from the axis. — Stems forking. Peduncles 1-3-flowered. (An old 

 Greek naine, from yipavot, a crane; the long fruit-bearing beak thought to 

 resemble the bill of that bird.) 



Perennials with stoutisb caudex and tough fibrous roots. 

 Petals more than 1 cm. long. 



Pedicels puberulent but not glandular ; petals light purple 



Pedicels glandular-puberulent ; petals deep purple • 

 Petals less than 1 cm. long. 



Sepals strongly awned ; flowers mostly solitary 



Sepals merely pointed ; flowers in pairs 



Annuals or biennials ; flowers small ; petals not over 1 cm. long, 

 Petals about 1 cm. long, twice the length of the sepals. 

 Petals entire ; leaves ternately dissected .... 

 Petals deeply retuse ; leaves nalmately lobed 

 Petals less than ] cm. long, 1-1^ times the length of the sepals, 

 Fertile part of the carpel pubescent. 



1. 6, maculcUum. 



2, G.pratense. 



8. O, Hbirieum. 



6. 0. 2>yr6naicum . 



4. 0. Rohertianum. 

 6. 6'. pyreTuiicu-m. 



