242 ~ Geraniaceae 
NN. Leaflets oblong to ovate, pubescent beneath, glabrous 
above, acutee W.C. E. (L. lanceolatus.) 
L. nuttallii Wats. 
JJ. Stem winged. W. E. 
13 palustris L. (Marsh Pea) 
CC. Stipules wide, ovate or somewhat half-hastate; their lobes wider than lanceo- 
late, acute or acuminate; plant glabrous thruout. 
O. Leaflets 10—20, peduncles shorter than the leaves; leaflets not cuspidate; 
stipules acuminate. W. C. 
L. polyphyllus Nutt. (Many-leaved Pea) 
OO.” Leaflets 6—12. 
P. Leaflets elliptic to linear, cuspidate; stipules acuminate; peduncles exceed- 
ing the leaves. E. (L. pauciflorus tenuior; L. parvifolius.) 
L. pauciflorus Fer. 
PP. Leaflets ovate-oblong, not cuspidate; stipules acute; peduncles not ex- 
ceeding the leaves. W. 
L. maritimus Bigel. (Beach Pea) 
BB. Flowers ochroleucous. W.E. (L. sulphureus. ) 
L. ochroleucus Hook. (Cream-colored Pea) 
GERANIACEAE Geranium Family 
Herbs (ours) or shrubs. Leaves toothed or lobed or compound, alternate or oppo- 
site. Flowers perfect, regular or irregular, commonly symmetrical, on axillary peduncles. 
Sepals 5. Petals 5. Stamens mostly in 2 sets, those alternate with the petals some- 
times sterile and in ours with a gland behind at base; filaments either dilated or mona- 
delphous at base. Ovary superior, of 5  1-celled carpels united around a central axis; 
ovules 2 in each cell. Capsule 5-lobed; carpels separating at maturity from the long- 
beaked central axis from below up; styles forming long carpel-tails which become revo- 
lute or spirally twisted. 
A. Leaves palmately-compound or -lobed or -veined. GERANIUM (p. 242) 
AA. Leaves pinnately-compound or -lobed or -veined. ERODIUM (p. 243) 
GERANIUM ; GERANIUM 
Annual or perennial. Leaves simple, alternate, palmately veined, petioled, usually 
lobed to deeply dissected; stipules conspicuous. Peduncles 1 —3-flowered; pedicels with 
4-bracted involucre at base. Sepals persistent. Stamens usually 10, sometimes 5, 5 longer 
and alternating with 5 shorter. Pistil 1; style 1; stigmas 5. Fruit a capsule, 5-lobed, 
each lobe separating at base at maturity and curling upward upon the style. Seed | 
in each cell. (Gk. geranos=a crane; referring to the crane-like beak of the pod.) 
A. Annual; petals | cm. or less long. 
B. Plants single or scarcely tufted. W.E. (GC. oreganum; G. incisum.) 
G. viscosissimum F. & M. (Sticky Geranium) 
BB. Plants caespitose-tufted. FE. 
G. fremontii Torr. 
AA. Perennial; petals 1.5——2 cm. long. 
C. Sepals awn-pointed; seeds reticulate or pitted. 
D. Flowers pale purple; seeds minutely reticulate. W. C. E. (G. bicknellii.) 
G. carolinianum L. 
DD. _ Flowers deep purple; seeds deeply pitted. W. 
G. dissectum L. (Split-leaf Geranium) 


