62 18. ACERACE-E. 19. GERANIACE^. 



Order XVIII. ACERACE^E. 



Cal. 5-, rarely 4 9-parted, imbricated. Pet. the same number, 

 inserted round a hypogynous disk. Stam. generally 8, inserted 

 on the hypogvnous disk. Ovary 2-lobed, 2-celled. Style 1. 

 Stigmas 2. Fruit winged, separating into 2 indehiscent nuts 

 each with 1 cell and 1 2 seeds. Embryo curved, albumen 0. 

 Trees with opposite leaves. 



I.ACER. Fl. polygamous. Calyx 5-parted, Pet. 5. Stam. 

 usually 8, longer in the male flowers. 



1. ACER Linn. Maple. 



1. A. campestre (L.); 1. 5-lobed, lobes entire or slightly cut, 

 corymbs erect, sep. and pet. linear hairy, wings of the fruit hori- 

 zontally diverging, ovary downy, stam. of the male flowers as 

 long as the corolla. .E. B. 304. R. v. 162. A small tree with 

 corky fissured bark. Woods and hedges. T. V. VI. Maple. 



t2. A. Pseudo-plat anus (L.) ; 1. 5-lobed unequally serrated, 

 racemes pendulous, ovary downy with spreading wings, stam. of 

 the male flowers twice as long as the corolla. E. B. 303. R. v. 

 164. A large handsome tree. In hedges and plantations. T. 

 V. VI. Sycamore. 



Order XIX. GERANIACE.E. 



Sep. 5, persistent, imbricated. Pet. 5, clawed, twisted in 

 aestivation. Stam. generally monadelphous, 2 or 3 times as 

 many as the petals, some often abortive. Fruit of 5 carpels co- 

 hering round a long beaked torus, each terminated by an indu- 

 rated style which finally twists up, separating from the torus, 

 and carrying with it the carpel. Seeds solitary, without albu- 

 men. Cotyledons convolute, plaited. 



1. GERANIUM. Sep. 5. Pet. 5. Stam. 10, monadelphous, 

 alternately larger and with glands at their base. Carp, 

 rounded at the top ; the long ultimately recurved awn gla- 

 brous internally. 



2. ERODIUM. Sep. 5. Pet. 5. Stam. monadelphous, 5 sterile, 

 5 fertile with glands at their base. Carp, with 2 lateral de- 

 pressions at the top ; the long ultimately spirally twisted 

 awn bearded internally. 



1. GERANIUM Linn. Cranesbill. 



* Root consisting of long fibres springing from a pramorse 



rhizome, perennial. 

 1 . G. phcEum (L.) ; peduncles 2-flowered, pet. roundish wedge- 



