SAXIFRAGACE^ 361 



or pinkish-tinged, small, with pods (follicles) 5, smooth, many-seeded. 

 Moist or swampy ground. Summer. 



S tomentdsa, Linn. Hardliack. Erect, 2 to 4 ft. high, with pubescent 

 stems, rusty or hairy: leaves simple, oblong or ovate, serrate, woolly on 

 lower surface, without stipules: flowers in terminal thyrse-like dense 

 panicles, pink or purple (rarely white), the follicles 5, pubescent or woolly: 

 pastures and low grounds. Late summer. 



S. trilobata, Linn. Bridal irreath. Large bush with long recurving 

 branches and bearing a profusion of showy flowers in flat-toi)ped clusters: 

 leaves round ovate, crenately cut and 3-lobed. S. Van Houttei is an 

 improved form. 



S. hypericifdlia, St. Peter's wreath. From 3 to 6 ft., leaves obovate- 

 oblong or wedge-shaped, obscurely toothed or lobed : flowers white, in many 

 small lateral sessile clusters, on short branches. Cultivated. 



S. Thunb^rgii, Sieb. Compact bush with very narrow leaves, sharply 

 serrate and very light green: flowers umbellate, small, white. Handsome 

 species from Japan. 



XXX. SAXIFRAGACE^. Saxifrage Family. 



Herbs or shrubs of various habit, with opposite or alternate 

 leaves that usually do not have stipules: flowers with ovary mostly 

 inferior, 5-merous, the stamens usually 10 or less (in a few cases 

 as many as 40): pistils 10 or less, either separate or the carpels 

 united, the fruit a follicle, capsule, or berry. A polymorphous family 

 comprising some 600 species in about 75 fjenera. Comprises saxifrage, 

 mitre-wort, hydrangea, mock orange, curi*ant and gooseberry. 



A. Herbs. 



B. Stamens twice as many as petals. 

 C. Petals entire: stamens usually 10. 



D. Flowers in cymes or panicles (rarely solitary) : 



capsule 2-beaked : ovary usually 2-celled. . . 1 . Saxifraga 

 DD. Plowf^rs in racemes: ovary 1-celled: capsule 



2-beaked, with 1 beak the longer and larger 2. Tiarella 



cc. Petals with edges fringed or cleft .'5. Mitella 



BB. Stamens (fertile) 5, or equal in number to the petals: 



clusters of sterile stamens opposite each petal ... 4. Parnassia 

 AA. Shrubs. 



B. Jjeaves opposite, 

 c. Stamens 8 or 10. 



D. Flowers all alike : sepals 5 5. Deutzia 



DD. Flowers usually of 2 kinds: the marginal ones 



enlarged and neutral, apetalous C. ITijdrangen. 



CO. Stamens many: petals, 4 or 6, large, white 7. Philadelphus 



BB. Leaves alternate b. Hibes 



