(i'i 18. ACERACE^. 19. GERANIACEjE. 



Order XVIII. ACERACE^. 



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

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

 on the hypogynous 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. 



1. Acer. F1. 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 hairj', 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-platanns (L.) ; 1. 6-lobed unequally serrated, 

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

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

 Ifil. — A large handsome tree. — In hedges and plantations. T. 

 V. VI. Sycamore. 



Order XIX. GERANIACEiE. 



Se)). 5, persistent, imbricated. Pet. 6, clawed, twisted in 

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

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

 heiing 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- 

 rn i.'n. 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, 6 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 Xt'nw. Cranesbill. 



* Root consisting of long fibres springing from a prcemorse 



rhizome, perennial. 

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



