ORDER LIX. SAXIFKAGACE.C. 323 



1. S. telepiiioi'des, (Mich.) Stern erect, branching. Leaves broad- 

 lanceolate, alternate at the base, glabrous, toothed. Flowers in termi- 

 nal corymbs, dense. Sta)7i€7is 10. Petals ovate-lanceolate. — Pale pur- 

 ple, if. June — Aug. Mountain?. 1 foot. Live Forever. 



2. S. terna'tum, (Mich.) Stc7n creeping, branching from the ba«e. 

 Leaves flat, glabrous, entire; the lower ones verticillate by threes, 

 broad, cuneiform, obovate ; the upper ones sessile, oval, or lanceolate. 

 Flowers in a 3-spiked cyme. Stamens 8, with the exception of the ter- 

 minal ones, which have 10. Petals linear-lanceolate, acute. — White. 

 2j:. May — June. Mountains. Stone-crop. 



3. S. pulchel'lum, (Mich.) Stem glabrous, assurgent. Leaves linear, 

 flattish, obtuse, scattered, sessile, numerous. Flowers in a many-spiked 

 cyme, crowded, unilateral, sessile, oetandrous; terminal one commonly 

 decandrous. Sepals lanceolate, obtuse. Petals lanceolate, acute. — 

 Purple or rose-color. U- May — June. Mountains. 4 — 12 inches. 



Genus II.— DIAMOR'PHA. Nutt. 8—4. . 



(From the Greek diamorplwo, to deform, from the irregular form of the fruit in ref- 

 erence to the order.) 



Sejxds 4, united at the base, obtuse. Petals 4, concave. 

 Stamens 8, with purple, nearly round anthers. Carpels 4, with 

 mjnute, obcordate scales at their base. Seeds 4 — 8. A succu- 

 lent, biennial herb, branching from' the base. 



1. D. pusil'la, (Nutt.) Leaves alternate, oblong, nearly terete. 

 Flowers small, in corymbose cymes. Fruit not dehiscing by either 

 suture. — White. $ . March. On flat rocks. Upper part of Geo. 



Genus III— PENTHO'RUM. Gron. 10—5. 



(pTom the Greek pente^ five, and Jwros, a boundary, in reference to the five beaks by 

 which the capsule is bounded.) 



Calyx 5-cleft. Petals 5 or none. Stamens 10. Carpels 5, 

 u^">^ted into a 5-angled, 5-celled capsule, with 5 diverging 

 br'.d\S. Seeds minute, numerous. Perennial plants, with al- 

 ternate, serrate leaves. 



1. P. sedoi'des, (L.) Stan branching, terete at the base, angled 

 above. Leaves lanceolate, nearly sessile, glabrous, doubly serrate. 

 Flowers in paniculate spikes ; cal3'x with ovate, serrate segments. 

 Seeds elliptical. — Greenish-yellow. 2^. July — Sept. Wet places. 1 

 — 2 feet. Virginia Stone-crop. 



Order LIX.— SAXIFRAGA'CE^E. 



Sepals 4 — 5, united or distinct. Petals as many as the sepals. 

 Stamens usually as many as the petals, inserted with the petals 

 into the calyx. Ovary of 2 — 5 carpels, either free from or co- 

 hering to the calyx, 1 -celled, with parietal placentse, or with as 

 many cells as carpels, with central phiccntai ; ovules u.^ually 

 numerous. Frtiit a capsule, and generally with a sei>ticidal 



