XX. GERANIACEZ. . 89 
settled, some botanists excluding Impatiens, Oxalis, and 7’ropeolum, thus 
confining it to the old Linnzan genus Geranium. 
Flowers regular. 
Leaves opposite, cut, or toothed. Carpels 1-seeded, round the 
base of a long-beaked poventaden or axis. 
Ten stamens Ba a ee : , , ? ; , . 1. GERANIUM. 
Five stamens. : , . 2, ERODIUM. 
Leaves radical or alternate, with 3 entire leaflets. Ang ay 
or axis not beaked. Carpels with several seeds ; . 3. OXALIS. 
Flowers irregular, with a large conical spur : 4, IMPATIENS. 
The Cape Pelargoniums, so frequent in our ee belong to 
Geraniacee. The South American J'ropeolums, including the common 
Nasturtium of gardeners, are also very nearly allied. 
I. GERANIUM. GERANIUM. 
Herbs, with forked stems often swollen at the nodes, opposite, pal- 
mately divided leaves, and purplish flowers, solitary or 2 together, 
on axillary peduncles. Stamens 10, of which 5 shorter, but generally 
with anthers. Ovary 5-lobed, terminating in a long beak with 5 short 
stigmas on the top, the lobes being all whorled round the long-beaked 
receptacle. Capsule separating into 5 1-seeded carpels, which curl up- 
wards, with a long elastic awn, detached from the beak, and glabrous 
inside, 
A genus spread over the northern hemisphere, with a few species in 
the southern, but always without the tropics. It is easily distinguished 
from all but Hrodiwm by the long beak of the fruit, which has given to 
the two genera Geranium and Lrodium the popular name of Crane’s- 
bill, 
Rootstock perennial. Flowers usually large. 
Peduncles 1-fiowered . ; : . 1. G. sanguinewm. 
Peduncles with 2 (rarely 3) ‘flowers. 
Petals deeply notched. (Flowers not so large.) . : . 5. G. pyrenaicwum. 
Petals entire or slightly notched. 
Petals dark purple, very spreading or almost refiexed. 
Points of the sepals very short. : 
Petals bluish-purple. Sepals with long fine points. 
Sate of the fruit erect. Flowers numerous, corym- 
bo 
pheum. 
bos 3. G. sylvaticum. 
Pedicels of the fruit spreading ‘or reflexed. Flowers in 
aloose panicle . : é ; : . 4. G. pratense. 
Annuals, with small flowers. 
Leaves of 3 distinct segments, which are pinnately cut or 
divided . 6. G. Robertianum. 
Leaves palmately cut or divided into 5 or more lobes or seg- 
ments. 
Calyx pyramidal, with projecting angles. Petals entire, 
much longer than the sepals 7. G. lucidum. 
Calyx scarcely angular. Petals about as lon g, unless deeply 
notched. 
Leaves divided to the base into 5 or more narrow cut seg- 
ments. 
Peduncles much shorter than the leafstalks. 
Leaves much divided. Seeds dotted . ll. G@. dissectum. 
Leaves small, the lower ones divided to the middle 
only. Seeds smooth 9. G. pusillum, 
Peduncles and pedicels long and slender. Leaves much 
divided , . 12. G. columbinum. 
Leaves orbicular, seldom divided below the middle. 
Petals deeply notched. 
Petals twice as long as the calyx . ; ‘ ’ . 5. G pyrenaticum. 
