Geranium.'] 
XX. GERANlACEvE. 
83 
and lobcd; flowers often polygamous. — Acer saccharinum of 
N. America yields Maple Sugar. 
1. A'cer Linn. Maple. 
Flowers polygamous. Cal. lobed or partite. Cor. of several 
petals. — Named from acer , sharp or hard ( ac , Celtic), on ac- 
count of the hardness of the wood, which was employed in 
fabricating spears, spikes, &c. 
1. A. *Pseudo-pldtanus L. ( greater M. or Sycamore ) ; leaves 
5-lobed unequally serrate, racemes pendulous, wings of fruit 
slightly diverging. E. B. t. 303. 
In hedges, plantations, and about houses, k- 5,6. — A large tree, 
with spreading branches and ample leaves. Flowers greenish. Fruit 
glabrous, furnished with two long membranaceous wings, which greatly 
aid in its dispersion. The wood is used for bowls and trenchers and 
other turnery. 
2. A. campestre L. ( common Mi) • lobes of the leaves mostly 
o inciso-crenate, racemes somewhat corymbose upright subto- 
mentose, wings of fruit diverging horizontally. E. B. t. 304. 
* Woods and thickets, not common in Scotland, and perhaps neither 
indigenous there nor in Ireland, k . 5, 6. — A small tree, with rough 
bark, full of deep fissures. Leaves small. Wood often beautifully 
veined, and then much prized. 
Ord. XX. GERANIACE2E Juss. 
Sepals 5, persistent, with an imbricative aestivation. Petals 5, 
with a claw. Stamens generally monadelphous and twice as 
many as there are petals, some occasionally abortive. Ovary 
5-lobed, terminated by a long thick beak (torus or gynobase), 
and 5 stigmas. Carpels 5, 1 -celled, ultimately separating from 
the base of the beak, together with a long elastic awn (the style). 
Seed solitary, without albumen. Embryo curved. Cotyledons 
convolute and plaited. — Herbs or shrubs with leaves opposite 
at the joints, or alternate and then opposite the peduncles. No 
tendrils. 
1. Geranium. Capsules with a long glabrous recurved awn. 
2. Erodium. Capsules with a long spiral awn, which is bearded on 
the inside. 
1. Geranium Linn. Crane’s-bill. 
Pet. regular. Stain. 10, slightly monadelphous ; 5 outer ones 
opposite the petals, rarely sterile ; the other 5 alternating, 
larger, with a gland at their base. Caps, each with a long 
glabrous recurved awn. — Name : ytpaviov of the Greeks, from 
ytpavoc, a crane ; the fruit resembling the beak of a crane. 
