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426 XXXII. GERANiACEJE. (Edgewortli & Hook, f.) 



Order XXXII. GERANIACEA. (By M. P. Edgeworth, F.L.S., 



and J. D. Hooker.) 



I 



Herbs, undershrubs, or rarely trees ; glabrous or more usually pubescent 

 and glandular. Leaves opposite or alternate, usually 2-stipulate. -^^^^^^ ^ 

 usually solitary and axillary, 1- or more-flowered Flowers urubellea 

 ' cymose or racemose, usually showy, hermaphrodite, regular or irregular. 

 JSepals 5, rarely 4 or 2, free or united to the middle, imbricate or rarely val- 

 vate, the posticous sometimes spurred. Petals as many as the sepals or 

 fewer by suppression, or 0, hypogynous or subperigynous, variously i^^^^^" 

 cated, rarely contorted. Torus scarcely expanded into a disk with 5 glands 

 alternating with the petals, or witliout glands, raised in the centre into a 

 beak, rarely flat. Stamens as many as or double or treble the sepals, or fewer 

 by suppression j filaments filiform or dilated, or connate into a nng ; antuers 

 2-celled, cells parallel, opening lengthwise. Ovar^ 3-5-lobed, ;3-5-cenea. 

 rarely 2-lobed, of 3-5 carpels united with the axis as far as the insertion oi 



ovules 



ovule 



1 or 2 or rarely more, horizontal or pendulous or ascending. i^?w^ capsma , 

 3-5-lobed, lobes 1-seeded often separating from the axis septicidal or locii_ 

 licidal rarely berried. Seeds pendulous or horizontal, albumen or seamy 

 or fleshy • embryo straight or curved, cotyledons flat convex or ^^'"jH^^^^ 

 folded fuliaceous or thick or fleshy, radicle either short and near th^ "^^j^ 

 or longer and inflected or incumbent on the cotyledons.— DisTRiB. bener^ 

 20, with about 800 species, chiefly found in temperate climates. 



^ Besides the genera described below, Pelargonium (the garden so called GeranitW 

 18 cultivated throuMiont. Inrlm nnri nT.A cnm^iAa nf TsTMtfil TP. errossulanoiaes, i^V.V 



71 



j^iiins. ^ xne genus is aistuiij^ished by tbe posticous sepal being prouu^-^'-i — 

 which 18 adnate to the pedicel and by some of the filaments being antherleas. ':' 



Tkibe 1. Geranleee. Leaves simple or compound. Flowers regu^^^J 

 nearly so. Sqxils imbricate. Glands alternate with the petals. Ara/t^ 

 ferous stamens as many or double or treble the number of petals. 



Carpels indeliiscent ; not beaked. Ovules solitary. ^ o^rrviA. 



Stamens 10, all perfect 1. BiEBEBsTEi>nA; 



Carpels beaked, dehiscent. Ovules geminate. _, . 



Perfect stamens 15, pentadelphous 2. MoNSOMA. 



Perfect stamens 10, rarely fewer . . 3. Gekanium. .^ 



Perfect stamens 5, staminodes 5 4. Erodium, . 



Tribe 2. Oxalideae. Zmves compound. /Y(n^?^rs regular. Sepah\s^^ 

 cate. Glands 0. Stigmas capitate. Ovules 2 or more. 



« 



Herbs. Fruit caj^ular. 



Stamens 10. Capsule locnlicldal, valves cohering with the axis. 

 Leaves 3-go -foliate 



5. OXALIS 



Stamens 10. Caf)8ule locuHcidal valves usually separating from _ -n nPHYTUM. 

 the axis to the base. Leaves pinnate ^' Uioru ; . 



** Trees or shrubs. Fruit berried. 





L-f. 



^Stamens 10, or 5 and 5 staminodes. Ovules many. Ajeavco AvrRRfloA- 



pinnate . . • • 6,* Avt.K 



Stamens 10. Ovules in paiw. Leaves l-S-foHolate - . "^nsjixn 



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