SAXIFRAQACE^. (s.\XIFltAGE FAMILY.) 55 



Order CALYCANTHACIJ-ff3, is represented by Cali/cnnthuy occidentalism Hook. 

 & Aru., an erect shrub C to 12 ft. higli, with opposite entire lanceolate leaves, 3 to G 

 inclies Ion' and large solitary livid or purplish red flowers; sepals and petals numerous, 

 linear-sputulate. The common name of tho Eastern species — Svcett-Sctnttd Shrub — is 

 scarcely applicable to our species. 



Order 22. SAXIFRAGACEJE. 



Herbs, shrubs, or small trees, distinguished from liosacece by albuminous seeds; usually 

 by definite stamens, not more than twice the number of the calyx-lobes; commonly Ijy 

 the want of stipules; sometimes by the leaves being opposite; and in most by the partial 

 or complete union of the 2 to o carpels into a compound ovary. Seeds usually indefinite 

 cr numerous. Petals and stamens on the calyx. Styles inclined to be distinct. Only 

 the IIijdrajKjieoi have many stamens. 



Tribe 1. SAXIFRAGE-aS. Herbs, leaves mostly alternate and without distinct 

 stipules. Styles or tips of the carpels distinct. Fruit capsular or follicular. 



* Ovary with 2 or rarebj more cells, or oj as many distinct car])€ls. 



Stamens 10, rarely more Saxifraga. 1 



Stamens 5 Boykinia. 2 



* * 



Ovary 1 -celled. 



Stamens 10, included Tellima. 3 



Stamens 10, exserted Tiarella. 4 



Stamens 5, and styles 2 Heuchera. 5 



Tribe 2. HYDRANGIE-Sl. Shrubs, leaves opposite, simple, no stipules. Fruit 



capsular. 



A tall shrub. Large white flowers Philadelphus. 6 



Low, scarcely shrubby. Small flowers Wliipplaa. 7 



Tribe 3. GROSSULARIE-SI. Shrubs, leaves alteniate with stipules adnate to tho 



petiole or wanting. Fruit a berry. 

 Calyx- tube adnate to the ovary Ribes. 8 



1. SAXIFRAGA, L. Saxifrage. 



Calyx 5-lobed, free, or its tube coherent with the lower part of the ovary. Petals 5. 

 Fruit of 2 follicles, or a 2-lobed capsule. — In our s{)ecies stemless; flowers white. 



1. S. Virginiensis, Miehx. Leaves thiekish, oblong-ovuto to s})atulate-()bovate, 

 coarsely toothetl ur almost entire, an inch or two long and the margined petiole often as 

 long; scape viscid pubescent, 4 to 12 inches high, a£ length loosely many flowered in a 

 paniculate cyme; flowers, small white. 



