Order 61.— SAXIFRAGES. 



207 



6-10 Siemens inserted on the calyx ; the 



styles 2, distinct, with their 



2 ovo/ries more or less united helow, and 



either free or adhering to calyx; 

 pods capsular, many-seeded; 

 embryo slender, in albumen. 



479 



4T5 476 



Mg. 4T5. Section of flower of Early Saxifrage 

 (Class Booli,page 871). jFig. 476. Ovary and pistils, 

 cut across to show the two cells.' JF'i^. 477. Mitella 

 diphylla; 8, a flower, magnified; 9, the fruit pods 

 open, showing the blaclc seeds. I'lg. 4S0. Cross-sec- 

 ,tion of the ovary; 1, seed cut open, showing the long 

 embryo. > 



Analysis of the Genera. 



§ Herbs. Petals imbricated in the bud a 



§ Shrubs. Petals valyate or convolute (twisted) in bud. . . .e 



a Flowers with 10 stamens b 



a Flowers with 5 stamens d 



b Petals 4^6, usually 5, entire o , 



b Petals 6, all pinnatifid. Stamens 10. Mitrewort. Mitel'la. 1 



b Petals 0. Low, prostrate, in wet places. Water Carpet. Cheysosple'ijium. 



Pods 2-culled. Leaves simple, mostly radical. Saxifrage. Saxif'baoa. 



c Pods 2-celIed. Leaves bi-ternately compound, cauline. S. Astil''ee. 



c Pods 1-celled. Leaves palmately lobed. False Mitrewort. Tiabel'la. 2 



d Styles 2, pod 2-celled. Scape reclined, 8-12' long. W. Sullivan'tia. 



d Styles 2, pod I-oelled. Scape erect, a foot or more. M. W. Hec'oheba, 



d Styles 3, pod 1-celled. Herb in tufts i' high. S. Leptjkopet'alok. 



e Leaves opposite, simple f 



e Leaves alternate. Shrub 4-8f. erect. Eaoeraes white. M. S. Ite'a. 



f Shrub climbing trees, &o. Flowers white, fragrant. S. Deodma'kia. 



f Shrubs erect. Cymes not radiate — all the flowers perfect. Philadel'phus. 3 



f Shrubs erect. Cymes radiate. Stamens 8-10. Htdhan'gea. 4 



1. MITEL'LA. JVIitrewort. 



Oalyx 5-oleft, heU-shaped. Petals 6.,. pinnatifid with linear divisions, 



