Geranium.] GERANIACEAE. 131 



Flowers regular ; sepals herbaceous, not spurred, imbricate; stamens 10 ; 

 leaves simple and palminerved or compound : 



Leaves simple, palminerved ; glands on the torus 5, alternating with 

 the petals ; capsules beaked, the valves when dehiscing rolled elas- 



tically upwards 1 . Geranium. 



Leaves compound ; glands on the torus (j ; capsules not beaked : 

 Herbs ; fruit capsular : 



Leaves 3-foliolate ; capsule valves cohering with the axis 



2. Oxalis. 



Leaves abruptly pinnate ; capsule valves detaching from the axis 



3. Biophytum. 

 Trees ; leaves pinnate ; fruit indehiscent, fleshy : 5 stamens often 



reduced to staminodes Averrhoa. 



Flowers irregular ; leaves simple, penninerved ; sepals usually petaloid, 

 the upper spurred ; stamens 5 with subconnate anthers : 



Lateral petals connate in pairs ; fruit capsular, elastically dehiscent 



4. Impatiens. 

 Lateral petals free; fruit a drupe with a bony pyrene...5. Hydrocera. 



1. Geranium, Linn. 



Herbs or undershrubs. Leaves stipulate. Peduncles axillary, 

 bracteate, 1-2-flowered or bearing umbels. Flowers regular. 

 Sepals and petals 5 each, imbricate. Disk represented by 5 

 interpetaline glands. Stamens 10 ; free or shortly united at the 

 base, anthers 10 (or rarely only 5). Ovary beaked, 5-lobed, 

 5-celled ; styles 5 ; ovules 2-3, superposed. Capsule 5-lobed, 

 5-celled; cells 1-seeded, usually separated from the axis by the 

 elastic curving of the lower portions of the beak. Seeds with 

 albumen usually ; cotyledons induplicate or contorted. 



GERANIUM NEPALENSB, Sweet; F. B. I. i. 430. G. affine, W. &A. 



133 (not o/Ledeb.); Wt. 111. i. t. 59. 



A slender diffuse perennial with pentagonal deeply 3-5-lobed 

 leaves, the lobes cut into strap-shaped segments ; flowers 

 *3-'5 in. across; carpels hairy; seeds shining, smooth. 

 Nilgiri and Pulney Hills, usually above 6,000 ft. 

 Various garden species of Pelargonium are found run wild about 

 the Nilgiri Hill stations ; one, Pelargonium grossularioides, DC., 

 of S. Africa, appears to be fully naturalized, as is Erodium cicu- 

 tarium, Leman, of Europe and N. India. 



