Geranium^ XIII. GEEANIAOEAE. 79 



straight or curved. Radicle sometimes long and folded over the cotyledons. 

 HerbSj shrubs, or trees, with opposite or alternate rarely entire stipulate leaves 

 and axillary peduncles. 



Geneea, 20. Species, 750. Chiefly inhabiting temperate regions ; plentiful in South Africa. 

 A few species are extra-tropioal or tropical. The New Zealand genera have a wide distribution. 



Capsule beaked, the lobes 1-seeded and elastically carried upwards to the apex of the beak. Leaves 



toothed or divided. 



1. Geranium. Flowers regular. Anthers usually 10. Styles combined. 



Beaks of the carpels revolute. 



* Eeodium. Flowers regular. Styles combined. Anthers 5. 



Beaks of the carpels spirally twisted. 



2. Pelargonium. Flowers irregular, with a short spur aduate to the pedicel. Anthers S-7. 



Capsule separating into 3 indehiscent cocci. 



* Tropaeolum. Flowers irregular, with a spur. Leaves peltate. 



Capsule opening loculicidally . 

 4. OxALis. Flowers regular. Leaves 3-foliolate. 



1. GERANIUM, Linn. 

 Sepals 5. Petals 5, alternating with 5 glands. Stamens 10, all with 

 perfect anthers, free or monadelphous. Ovary 5-celled, beaked, the beak ter- 

 minated by the 5-lobed stigma ; cells 2-ovuled. Lobes of the capsule separating 

 from the axis and curved upwards on a long awn parted from the beak and 

 glabrous inside. Radicle turned back on the plicate or convolute cotyledons. 

 Herbs, rarely woody at the base, with stipulate lobed or divided leaves and 

 axillary bracteolate 1— 2-flowered peduncles. 



Species, about 100. Widely distributed over the globe, but most abundant in the Northern 

 Hemisphere ; rare within the tropics. Two of the New Zealand species are endemic. 



Etym. An old Greek name, from crane, in reference to the beak-like carpels. 



Leaves orbicular or suborbicular . 



Stenas erect. Leaves much divided. Peduncles 2-flowered. Sepals awned 1. O. dissectum. 

 Stems prostrate, stout. Leaves with broader lobes . . . . . . var. glabratuiu. 



Stems prostrate, weak, downy. Peduncles 1-flowered. Sepals scarcely 



awned . . . . . • ■ • • • . . . . . . 2. G. mi-crophyllum. 



Stemless. Rootstook thick. Peduncles 1-ilowered. Sepals awned . . 3. (?. sessiliflorum. 



Stems prostrate, stout. Leaves hoary. Flowers large. Peduncles 1- 



flowered. Sepals awnless . . . . . . . . . . . . i. G. Traversii. 



Stems prostrate. Leaves soft. Peduncles 2-flowered. Sepals awnless. 



Carpels wrinkled . . . . ■ . _ . . ■ . . . ..'(?. molle. 



Leaves 1- or 3-pimiatifid. 

 Stems erect or suberect. Sepals with long awns . . ' ... . . ' G. Robertianum. 



1. G. dissectum, L., Cent. i. 21, var. australe. Annual or perennial, 

 1ft.— 2ft. high, erect, decumbent or prostrate, usually clothed with soft spread- 

 ing or retrorse hairs, rarely downy or glabrate. Leaves on long petioles, nearly 

 orbicular, cut to the base into 5-7 lobes ; lobes pinnatifid ; segments broad 

 or narrow, obtuse. Peduncles 2-flowered. Sepals ovate or ovate-lanceolate, or 

 oblong with a long awn, hairy. Petals notched, about as long as the sepals or 



