Cratceva 



CAPPARIDACE^ 



235 



5. CRAT^VA L. 



Glabrous trees or shrubs, the twigs marked with lenticels. 

 Leaves 3-foUolate. Flowers purpurascent, many in a corymbose 

 raceme, often polygamous, tasting like horse-radish. Sepals 4, 

 persistent. Petals 4, white, with a long claw, open in bud, two 

 somewhat larger ; claw nearly as long as limb. Receptacle 

 saucer-shaped with inverted lobed margin from which the sepals 

 and petals spring, elevated or produced into a cylinder in the 

 centre from which arise the stamens and pistil. Stamens 8-30, 

 long exserted. Pistil with a long stalk (gynophore), as long as 

 the stamens ; ovary 1-2-celled ; placentas 2. Berry globose or 

 ovoid, 1-2-celled. Seeds kidney-shaped ; cotyledons subcylindri- 

 cal, convolute. The whole plant smells of garlic, whence the 

 common name, Garlic Pear tree. 



Species 10, natives of the tropics. 



Petals elliptical above, 1-6-2-4: cm. 1., 4-7 mm. br. 



Fruit 3 -2-3 -8 cm. in diam 1. C. Tapia. 



Petals narrowly elliptical-oblong, -8-1 -7 cm. 1., 1-2 mm. 



br. Fruit about 2 cm. in diam 2. C. gynandra, 



1. C. Tapia L. Sp. PL 444 (1753) ; petals, limb elliptical 

 with a long claw, l'6-2*4 cm. 1., 4-7 mm. br. ; receptacle only 



Mg. d7.—Cratwva Tapia L. 

 A, Portion of branch showing leaf and D, Ovary cut lengthwise X 5. 



fruit X g. 



B, Flower x f. 



C, Receptacle cut lengthwise x 5. 



E, Ovary cut across X 6. 

 ¥, Seed cut lengthwise X IJ ; c, cotyle- 

 dons ; r, radicle. (After Eichler.) 



