GERANL\CEJE. (gEEANIUM FAMILY.) 33 



stipular glands very small; flowers in close terminal clusters; petals about 3 lines long; 

 capsule globose. 



4. L. Californicum, Gr. Smooth, glaucous, 6 to IS inches high; stipular glands 

 conspicuous; flowers in small cymes or the lower solitary; petals 4 lines long, capsule 

 acute, shorter than the calyx. 



5. S. sperguliuum, Gr. Smooth, 6 to 15 inches high; leaves without stipular 

 glands; pedicels 3 to G lines long, and mostly solitary; sepals slightly glandular, minute; 

 capsule obtuse, exceeding the calyx slightly. 



Order 15. GERANIACE-ffl. 



Flowers perfect on axillary peduncles, regular (in our species) and symmetrical, the 

 parts in fives. Stamens mostly in two sets, those alternate with the petals sometimes 

 Bterile. Ovary deeply 5-lobed, with a prolonged axis, or 5-celled. 



§ 1. Carpels 5, one-seeded, separating at maturity from the long central axis; the styles 



forming long twisted tails. 



Fertile stamens 10; tails of the carpels not bearded Geranium. 1 



Fertile stamens 5; tails of the carpels bearded Erodium. 2 



§ 2. Carpels 5, one-seeded, fleshy, distinct Limnanthes. 3 



§ 3. Carpels combined into a 5-celled ovary Oxalis. 4 



1. GERANIUM, L. Cranesbill. 



Stamens 10 with anthers, a gland behind the base of each of the shorter 5; filaments 

 bearded at the base. Ovary 5-lobed; style 5-lobed at the top; the roundish-oblong carpels 

 splitting away from the persistent beaked axis. Leaves palmately lobed and mostly 

 opposite, scarious stipules; swollen-jointed stems. 



1. G, Carolinianuni, L. Diffusely branched, pubescent; leaves 1 to 2J inches in 

 diameter, palmately 5-7-parted, the divisions cleft into linear lobes; petals rose-colored 

 equaling the awned sepals, 2 or 3 lines long; carpels hairy; tails half an inch long. 



G. iucisum, Nutt. , with large purple flowers, grows in the Sierra Nevada, and ia 

 Humboldt County. 



2. ERODIUM, L'Her. 



Characters as in the last; but the filaments dilated, the 5 opposite to the petals sterile 

 and scale-like; carpels attenuate to a sharp bearded base; the tails long bearded on the 

 inner side. Leaves commonly pinnate and bipinnately parted or lobed; peduncles 

 umbellately 2-several-flowered with a 4-bracted involucre at the base of the pedicels; 

 flowers small. 



1. E. cicutarium, L'Her. (Filaria or Pin-Clover.) Hairy, much branched, 

 3 



