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The number of species of saxifrage cultivated abroad in rockeries and alpine-gardens is very large and there are many fanciers who have made very large collections of them. The following account has attempted to include those species which are in more general cultivation, although there are numerous others which occur in some of the collections, and it includes the better known hybrids and certain seedlings. A large part of these species are either very rare or lacking in American gardens. Very few of the species have been modified to any extent under domestication.
 
The number of species of saxifrage cultivated abroad in rockeries and alpine-gardens is very large and there are many fanciers who have made very large collections of them. The following account has attempted to include those species which are in more general cultivation, although there are numerous others which occur in some of the collections, and it includes the better known hybrids and certain seedlings. A large part of these species are either very rare or lacking in American gardens. Very few of the species have been modified to any extent under domestication.
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S. atrovirens, Hort., is offered in the trade as a form growing 6 in. high, with white fls. Probably belongs in Section Dactyloides.—S. Bakeri, Hort., is one of the smaller mossy saxifrages with vivid green foliage, a plant of compact habit with rich carmine or rose fls. Probably belongs in Section Dactyloides.—S. Boykei, Hort., is offered in the trade.—S. capillaris, Hort., is offered in the trade as a white-fld. species. -S. carniolica, Hort., is offered in the trade and said to have white fls.—S. caryophylla, Hort., is offered in the trade as one of the easiest to grow, fls. white. Perhaps a misspelling of coriophylla, which is a variety of S. Rocheliana.—S. circuenta, Hort., is said to have silvery braided foliage and pretty little panicles of white fls. borne on sts. 4 in. high. It belongs to Section Euaizoonia.—S. cristata hybrida, Hort., is offered in the trade as a form growing 6 in. high, with white fls. Probably a form of S. Aizoon near var. paradoxa.—S. elatior, Mert. & Koch- S. Hostii.—S. elatior, of German authors – S. altissima.—S. elatior, Wimm.-S. Aizoon var. major.— S. Ganolini, Hort., is offered in the trade as growing 6 in. high with white fls.—S. Haworthii, Hort., forms cushions of rather pale green, about 6 in. high, the growth being packed and somewhat rounded at the top: fls. pure white and numerous. Probably belongs in Section Dactyloides.—S. Hectori, Hort., is offered in the trade.— S. hybrida, Hort., not others – S. decipiens.—S. hybrida, Haw.-.S. hypnoides.—S. incurvifolia, Hort., not Don, is listed as belonging to the encrusted section and as having white fls.—S. incurvifolia, Don, is a variety of S. cespitosa.—S. laevis, Hort.(?) of Bieb. and of Oettingen. The plant in cult. under this name belongs to Section Trachyphyllum and has a spreading habit like S. aizoides with loose rosettes of narrow elliptic-oval lvs.: fl.-sts. about 2 in. high, tinged crimson below and bearing each 4-6, not large, rich yellow fls. Caucasus. Requires a moist situation.—S. laevis, Bieb., also from Caucasus, is placed in Section Kabschia by Engler, but by several other authors is said to be close to S. Aizoon or S. aizoides and may be the same as the plant in cult.; if not the one now grown as S. laevis must receive a new name.—S. laevis, Oettingen, seems to be the same as that of Bieb. as far as the description is concerned; the plants have not been seen.—S. leans, Hort., is offered in the trade as a very compact form, 6 in. high, with white fls. Probably belongs in Section Dactyloides.—S. Lindesiana, Hort., also spelled Lindisiana, is offered in the trade as a mossy species with white fls. Perhaps belongs in Section Dactyloides.—S. lingueformis, Hort., is offered in the trade.—S. palmata, Hort., is uncertain and seems to be sometimes S. decipiens, sometimes S. geranioides. Var. foliis variegatis is a variety of one of these species with variegated foliage.—S. paradoxa, Hort., is described in a trade-list as a beautiful member of the Aizoon group with long and "braided" foliage. Presumably a natural hybrid between S. crustata and S. Hostii. Considered by some as a variety of S. Aizoon, which see.—S. paradoxa, Kit.-S. moschata var. pygmaea.—S. pectinata, Pursh-Luetkea pectinata, Kuntze.— S. pedatifida, Hort., is offered in the trade as a white-fld. species.—S. Pseudo-Fosteri, Hort., is offered in the trade as a hybrid of the encrusted section. Var. sancta, Hort., is offered in the trade as an early yellow-fld. form.—S. pyrolifolia, Don – Leptarrhena pyrolifolia. R. Br.—S. Ringeana, Hort.. is offered in the trade as a dwarf plant of spreading habit, growing 4 in. high and having white fls. Probably belongs in Section Dactyloides.—S. rupestris, Lapeyr.- S. ascendens.—S. rupestris, Salisb. – S. hypnoides. Which of these the material offered in the trade as a very compact plant growing 6 in. high, with white fls. cannot be determined with certainty, though probably the second as it is said to belong to the mossy section.—S. Schroederi, Hort., is offered in the trade as allied to S. ceratophylla which is a variety of S. trifurcata, a species of Section Dactyloides.—S. sexemifida, Hort., is offered in the trade. S. Sibthorpii, Boiss. Fig. 3558. Of the Cymbalaria group: perennial, cespitose, with reniform long-stalked obtuse- lobed lvs. and small yellowish fls.: petals ovate-elliptic. A good rock-plant, but seems not to be in the trade.—S. Stansfieldi, Wm. Robinson, is said to have a close-growing habit, dark green foliage and white fls. borne on sts. 4 in. high. Perhaps it belongs in Section Dactyloides.—S. stellata, Hort., not Pav., is offered in the trade as a white-fld. mossy plant, 1 ft. high. This is unquestionably not the stellata of Pavon which is the Peruvian representative of S. cespitosa and grows scarcely 1 in. high. —S. stenoglossa, Tausch. Lvs. of the rosette rather erect, cuneate or cuneate-linear, acute, serratures narrow, the lower ones spreading, the uppermost contiguous, with the terminal tooth slightly protruding. A plant is offered under this name, but whether the same as the indeterminable Tausch species it is impossible to say. The above given description is a translation of the original of Tausch.—S. Tantianae, Hort., is offered in the trade.—S. taxiophylla, Hort., is offered in the trade as a white-fld. species. Var. persifolia, Hort., is also offered.—S. tenuifolia, Hort., is offered in the trade as growing 6 in. high, with white fls. Probably belongs in Section Dactyloides.—S. Van Houttei, Hort., is offered in the trade. It belongs to Section Bergenia and has light pink fls.—S. venetica, Hort., is offered in the trade as a species with minute tufts and primrose-yellow fls. belonging in the encrusted section.—S. Webbiana, Hort., is offered in the trade. Possibly belongs in Section Dactyloides.
 
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