SAXIFRAGACK.E. (SAXIFRAGE FAMILY.) 1 G3 



— The lurid purple flowers terminating the leafy branches. Bark and foliage 

 aromatic ; the crushed flowers exhaling more or less the fragrance of strawber- 

 ries. (Name composed of Kakvt-, a cup or calyx, and avdos, flower, from the 

 closed cup which contains the pistils.) 



1. C. floridllS, L. Leaves ocal, sof -downy underneath. — Virginia'? and 

 southward, on hillsides in rich soil. Common in gardens. April- Aug. 



2. C. lsevigatUS, Willd. Leaves oblong, thin, either blunt or taper-pointed, 

 bright green and glabrous or nearly so on both sides, or rather pale beneath ; flow- 

 ers smaller. — Mountains of Franklin Co., Penn. {Prof. Porter), and southward 

 along the Alleghanies. May - Aug. 



3. C. glatlCUS, Willd. Leaves oblong-ovate or ovate-lanceolate ; conspicu- 

 ously taper-pointed, glaucous-white beneath, roughish above, glabrous, large (4' -7' 

 long); probably a variety of the preceding. — Virginia? near the mountains 

 and southward. May -Aug. 



Order 35. SAXIFKAGACEJE. (Saxifrage Family.) 



Herbs or shrubs, of various aspect, distinguishable from Rosacea? by hav- 

 ing copious albumen in the seeds, opposite as well as alternate leaves, and 

 usually no stipules when the leaves are alternate ; the stamens mostly definite, 

 and. the carpels commonly fewer than the sepals, either separate or partly 

 so, or all combined into one compound pistil. Calyx either free or adher- 

 ent, usually persistent or withering away. Stamens and petals almost al- 

 ways inserted on the calyx. Ovules anatropous. — A large family, to 

 which Parnassia, formerly associated with Drosera, is commonly referred, 

 — now made to include Ribes also. 



Tribe I. GROSSULiARIES. Shrubs, with alternate and palmately veined and lobed 

 leaves : stipules none or united with the base of the petiole. Calyx-tube coherent with the 

 one-celled ovary, which has 2 parietal placenta? and forms a many-seeded berry. Seed-coat 

 externally gelatinous. Embryo minute at the base of the hard albumen. 



1. Ribes. Character of the tribe. Stamens and small petals 5 



Tribe II. ESCALiL.ONIE.aE. Shrubs or trees, with alternate and simple pinnately 

 veined leaves, and no stipules. Ovary 2-5-celled. 



2. Itea. Calyx 5-cleft, free from the 2-celled ovnry, which becomes a septicidal pod. 



Tribe III. HYDRAIVGIEjE. Shrubs or trees, with opposite simple leave*, and no 

 stipules. Ovary 2-5-celled ; the calyx coherent at least with its base. Fruit (in the fol- 

 lowing) a many -seeded pod . 



3. Hydrangea. Lobes of the calyx minute in complete flowers. Petals valvate in the bud. 



Stamens 8 or 10. 



4. Philadelpbus. Lobes of the calyx and petals conspicuous; the former valvate, the 



latter convolute in the bud. Stamens 20 - 40. 



Tribe IV. SAXIFRAGES. Herbs, without stipules, except perhaps a membranous 

 dilatation of the base of the petiole. Petals imbricated or rarely convolute in the bud. Fruit 

 dry, capsular or follicular. 

 » A cluster of sterile or gland-tipped filaments at the base of each petal. Stigmas 3 or 4, situ- 

 ated directly over as many parietal placenta? ! 

 5. Parnassia. Sepals, petals, and proper stamens 5. Peduucle a scapa or scape-like, Te 

 flowered. 



