SAXIFRAOACEyE. 



137 



I am afraid the student will not at first find 

 all these divisions intelligible, especially as to 

 the forms of the terminations of the L. in 

 division C. I am persuaded, however, that 

 as he proceeds in examining a number of species, 

 he will obtain a distinct idea of each, in spite 

 of occasional deviations from the artificial 

 chai'acter. 



Sect. I. Calyx almost superior. Shoots per- 

 ennial. 



A. L. small, fleshy, mostly opposite, thick- 

 ened at the tip, and there marked with one 

 or three pits. 



1. oppositifolia. M. solitary. C'al. ci- 

 liatCj but without glands. L. triquetro-cari- 

 nate. p. 5, 6. Very high rocks. Br. Alps. Pyr. 



2. radolpliia3aa= PI. solitary. Cal. glan- 

 duloso-ciliate. L. obovate, obtuse, with a single 

 terminal pit. p. 7, 8. Very high, on the Kalser- 

 thorl near Heitigenblut. 



. 3. bifiora. Fl. in heads of 2 or 3. Cal. 

 glandidoso-cUiate. L. obovate or spatnlate, 

 with a single terminal pit. Stamens about as 

 long as the separate lanceolate petals, p- 7, 8. 

 Snowy. Alps and Pyr. 



4. Kochii. Tl. in heads of 2 or 3. Cal. 

 glanduloso-ciliate. L. spatnlate. Stamens not 

 half as long as the oblong contiguous petals. 

 p. 7, 8. Snowy, s. Alps of Sw. 



5. retusa. Fl. 1-4. L. obovate, triquetro- 

 carinate, with tiu'ee dots on the terminal plane, 

 p. 7, 8. Snov;y. w. Alps. Pyr. 



B. L. alternate, undivided, fleshy, with a 



marginal row of operculate pits. 



i. Shoots forming rosettes of Ungulate L.; 

 ciliate at base. 



a. L. of Rosettes serrulate or crenate. 



6. Cotyledon. L. somewhat obtuse. Mar- 

 gin with acuminate serratm'es. Stem branched 

 fi-om below middle, forming a pyramidal panicle. 

 Branches 5-15-flowered. Pet. cuneate. p. 7, 

 8. High granitic dividing chain of Alps. Pyr. 



7. Aizoon. L. somewhat obtuse. Margin 

 with acuminate serratures. Stem branched 

 at top. Branches 2-3-flowered. Pet. nearly 

 round, p. 7, 8. Mountain rocks. Alps. 

 Vosges. Boh. Ki-euznach. s. Fr. It. 



8. florulenta. " Root-L. lanceolate, mu- 

 cronate, ciliate. Stem-L. linear. Stem hollow, 

 flowering fr'om base, and forming a thjTSoid 

 raceme. Mountains of Nice,"— DC. Not 

 noticed ly Buby or Bert. 



9. longifolia. L. of rosettes crenate, 

 linear, very long {six iv.ches). Stalk branched 

 from below middle, and forming a many-flow- 

 ered, pyramidal, glandular panicle. Pet. oval. 

 p. 7, 8. Hi,gh, rocks and stony. Pyr. 



10. elatior. L. of rosettes crenate, linear, 

 not very long {two inches) . Stalk branched at 

 top. Branches long, naked, corymbose at top, 

 6-12-flowered. Pet. obovate. p. 7, 8. Rocks 

 and stony, s. Alps. 



11. cochlearis. L. of rosettes crenate^ 

 subrotmido-spatulate. Rac. long. Branches 

 secund, 1-2-flowered. Cal. glandular. Pet. 

 obovato-oblong. p. 5, 6. Portofino in Liguria. 



b. L. of Rosettes entire. 



12. rtiarginata. L. of rosettes obovato- 

 spatnlate, hairless. Fl. -stalk glanduloso-pubes- 

 cent. Corymb simple, diffuse. Pet. obovate, 

 5 -nerved, twice as long as calyx, p. 6. High 

 rocks. St. Angelo. Majello. 



13. lingtilata. L. Hneari-lingulate, some- 

 what obtuse. Fl.-stalk branched from about 

 middle : that and the Cal. without hairs or 

 glands. Rac. long, secund, compound, many- 

 flowered. Pet. cuneate. p. 7. Calc. moun- 

 tains. Italy s. of Apenn. 



14. crustata. L. linear, obtuse, an. glan- 

 dular. Branches 1-3-flowered. Pet. obovate. 

 p. 7, 8. Very high. Tyi'ol. Carinthia. Carniola. 



15. miutata. L. obtuse. Majgin entire or 

 obscm-ely serrulate at the end. Pan. racemose. 

 Pet. lineari-lanceolate, acute, p. 6, 7- Moist 

 rocky. Alps. Pyr. 



16. poropbyila. L. spatnlate, rounded 

 at top, sometimes with an apicidus. Fl.-stallc 

 densely villous, glandular. Rac. terminal, 

 simple, few-flowered. Cor. shorter than calyx. 

 p. 5, 6. Abruzzi. Lucania. 



17. Ettedia. " Stems, Cal., and Stalks 

 viscid, with glandidar hairs. L. spatnlate, api- 

 culate. Pan. somewhat coi-ymbose. Fl. dis- 

 tant. Pet. broadly obovate, somewhat crenu- 

 late. Cal. exceeding corolla and stamens, p. 

 6, 7. High calc. rocks. Pyr."— DC. 



ii. Shoots ending in lifts of %-edged L. 



18. burseriana. L. of shoots erect, subu- 

 late, finely acute, with rigid mucro. IMai'ginal 

 Pits 7. Flowering-stalk glandular. Fl. mostly 

 solitary. Pet. subrotund, erenulate, with many 

 straight nerves, p. 6, 7. Calc. rocks, e. Alps. 



19. Vandellii. L. of shoots erect, ovato- 

 lauceolate, acute, vsith rigid mucro, Mai-ginal 



