Ordbb 61.— SAXIFRAGACE^. 37 1 



obovate, yellow, dotted pet. ; caps, ovate, tipped with the diverging styles. — Lake 

 sliores, Can. and northward. 



5 S. leuoanthemifolia Mx. Tisoid-pubesoent ; Ivs. radical, spatulate, cut-den- 

 iate, tapering to a petiole; scape diffusely paniculate, with capillary pedicels; 

 calyx free, reflexed ; pet. vmequal. — Mta. of Car. and G-a. Scapes 1 to 2f high, 

 bearing numerous small fls. Lvs. out into several large teeth. Petals white or . 

 ^nk, the three larger spotted with yellow. Jn. — Sept. 



6 S. erosa Ph. Viscid-pubescent; lvs. radical, thin, oblong-lanceolate, acute, 

 with erase teeth; panicle oblong, loose, with leafy bracts and divaricate branches; 

 cal. free, with reflexed, obtuse sepals as long as the equal, obtuse petals. — Mts. 

 Peun. to Car. Scapo 12 to 18' high. Fls. scattered, on slender pedicels. Petals 

 small, white, yellow at base. Jn., Jl. 



7 S. Carey^na Gray. Lvs. radical, hng-peiiokd, thin, glabrous, round-ovate, 

 coarsely orenate-dentate, base truncate or subcordate; scape slender, diffusely 

 cymous-paniculate ; pedicels filiform ; petals lance-oblong, sessile, twice longer than 

 the recurved sepals ; carpels distinct, turgid, free. — Mts. N. Car., on wet, shady 

 rocks. A low herb with small, white flowers. 



8 S. aizobu Jacq. Lvs. mostly radical, rosulate, spatulate, obtuse, bordered with white 

 cartilaginous teeth and a marginal row of impressed dots ; fls. corymboiis panicu- ' 

 late ; cal. (and ped. glandular viscid) tube hemispherical, as long as the 5-toothed 

 limb; pet. obovate; sty. divergent, longer than the calyx. — Southern shores of 

 Lake Superior, to Nova Scotia and northward, on shady, moist rocks. Sfe. '5 to 

 10' high. Pis. white. Jl.., "- ' 



9 S. Virginiensis Mx. Eaklt Saxifrage. Lvs. mostly radical, spatulate-obovate, 

 crenately toothed, pubescent, shorter than the broad petiole ; 'scape nearly leaf- 

 less, panioulately branched above ; fls. many, eymous ; cal. adherent to the base 

 of the ovary ; pet. white, oblong, much exceeding the calyx. — An early and interest- 

 ing plant, on rooks and dry hills. Can, and U. S. Scape 4 to 12' high, pubescent, 

 annual. Lvs. rather fleshy, 9 to 13" by 6 to 12". Pis. in rather dense clusters, 

 white, or tinged with purple, in early spring. Fig. 310. 



10 S. Pennaylvdnica L. Lvs. radical, oblong-lanceolate, rather acute, taper- 

 ing at base, denticulate; scape nearly leafless; branches alternate, with close 

 cymes forming a diffuse panicle, fls. pedicellate ; pet. greenish, linear-lanceolate, hut 

 little longer than the cal. — Larger than the foregoing, common in wet meadows, 

 Me. to Ohio. Lvs. fleshy, pale green, 6 to 8' by 1 to 2', on a broad petiole. 

 Scape 2 to 3f high, gross, hollow, hairy and viscid, branched into a large, oblong 

 panicle of yellowish green fls. of no beauty. May. 



5. ASTIL'BE, Don. (Gr. a, privative o-T(''A/3?;„brightness ; the leaves 

 are not shining.) Polygamous ; calyx adherent to the base of the 

 ovary, obconic, with 4 or 5 erect segments ; petals 4 or 5, spatulate ; 

 stamens 8 or 10, exserted ; ovary 2-celled ; carpels of the fruit separat- 

 ing and dehiscing lengthwise inside ; seeds 1 to 4 in each cell, covered 

 ■with a loose, membranous testa. — 1| Coarse and weed-like plants. Lvs. 

 compound, 2 or 3-ternate. Fls. small, yellowish-white, in spicate rac. 

 forming a compound panicle. 



A. dec^ndra Don. St. tall, angular ; Ifts. subcordatej inoisely lobed, muoronate- 

 serrate; sterile fls. mostly apetalous; sta. 10. — Mts. of S. 'W. Ta., 13. Tenn., K 

 , Car. to Ga. Abundant in its localities. St. 4 to 6f high, with very large pani- 

 cles. Its resemblance to Spirea Aruncus is very striking, tiut its irregularly cleft 

 Ifts. and its twice larger (2'' long), 2-carpeled fr. are positive marks of difference. 

 . Jn. — Aug. 



6. BOYKIN'IA, Nutt. (Dedicated to Dr. Boyhin, of Georgia, a 

 pioneer botanist.) Calyx turbinate adherent, 5-cleft ; petals 5, decidu- 

 ous ; stamens 5 ; ovary 2-celled, 2-beaked ; capsule invested with the 

 permanent, urceolate calyx tube, dehiscent between the beaks. — 'K Lvs. 

 alternate, petiolate, palmate. Fls. eymous, white. 



