DECANDRI A.— DIGYNI A. 1 89 



sessile; petals oval, with branched nerves; cap- 

 sule half inferior. 

 HAB. Rocks and hills. April— May. U . Stem 

 succul., 3 — 12 in. high ; leav. thick ; fl. wh. 

 I. S. pennsylvanica : pubescent, leaves oblong-lance- 

 olate, acute at each extremity, obsoletely denticu- 

 late ; stem naked ; panicle oblong ; flowers fascicu- 

 late ; petals linear, longer than the calyx ; capsule- 

 superior. 

 HAB. Swamps. May — June. U. Leav. rad. y 5 — 

 8 in. long; scape 1£ — 2 ft. high; pet. yell, green. 



►98; CHRYSOSPLENIUM. Golden Saxifrage. Saxi- 

 fragece. 



C. oppositifolium : leaves opposite, roundish-cordate. 

 HAB. Wet places. April— May. U- PL succul., 

 yell. gr. y dichot. ; fl. sess., 8-an. 



299. TIARELLA. Saxifragece. 



T. cordifolia: leaves cordate, acutely lobed, den- 

 tate ; teeth mucronato ; scape racemed. 



HAB. Rocky hills. May. lj. . Leav. rad., pubes. ; 

 fl. in a simp, racem., wh. 



300. MITELLA. False Sanicle. Saxifragece. 



. M. diphylla : leaves somewhat lobed, with the lobes 

 acute and dentate ; stern erect, with two opposite 

 leaves above the middle. 

 HAB. Banks of creeks. May. U. Jl foot high, 

 simp, slend. ; racem. simp. ; fl. wh. 



'. M. cordifolia: leaves orbicular-reuifnrm, doubly - 

 cren ate, with scattered hairs above ; scape erect 

 or prostrate, naked, or with a single leaf. 

 HAB. Moist rocks. June. If.. Stem, slend. with 

 creeping stolons ; fl. few, wh. 



501. SAPONARIA. Soap-wort. CaryophylUn . 



3. officinalis: leaves ovate-lanceolate; calyx cylin- 



dric, smooth. 

 HAB. Watte places, <^c. June — Sept. U. Stem 

 . high, scab.; fl. large, rose-col. 



