Chrtsosplenium. SAXIFRAGACEjE. 589 



reg. Novein. 1839, appx. p. 83.) now rofors to Hotoia Japonica, and adducos Antilbo 

 rivularis, Don, as a synonym. If llio tjcniis Aslilbo was tbundod on lliis plant, as 

 wo liave reason to suppose, tho petals nuist occasionally be wanting, as indeed 

 Pursh remarks of our species, or they may have been overlooked ; and the " cap. 

 Bula polyspernia" may liavo been inferred from the numerous ovules. Tho re. 

 semblance to Spirma Aruncus is so close that, according to Decaisne, tho plant of 

 Japan is described under this name in Thunborg's Flora Japonica; and our own 

 species has been confounded with that plant in herbaria. 



1. A. decandra (Dun ! I. c.) : caly.x (alway.s 5-parted) nrarly free from 

 the ovary; Icalk'ts conlato, incist-ly lolx-d and .serrate, the lower .surfare and 

 petioles somewhat glandular and liairy ; petals linear-spatulato. — Tiarella 

 biternata, Vent. hort. Malmais. t. 54; Pursh .' Jl. 1. j). 31.3; Ell. s/,: 1. p. 

 513 ; DC. prodr. 4. p. 51. Hoieia biternata, Murr. Sf Decaisne^ in ann. 

 sci. nat. {ser. 2) 2. L 11, /. 11. ^y 12. (the seeds.) 



On the mountains of N. Carolina ! S. Carolina; and of Georgia, Dr. Mac- 

 bride ex Ell. June-Aug. — We find the petals in all tlie specimens we have 

 examined, although they are often small and scarcely exceeding llie calyx. 



11. CHRYSOSPLENIUM. Tourn. ; Gtertn.fr. t. 44; Endl. gen. t. 815. 



Calyx-tube coherent with the ovary; the lobes 4-5, obtuse, colored within. 

 Petals none. Stamens 8-10, inserted on the margin of the epigynous disk: 

 filaments short, subulate : anthers reniform, 2-celled. Styles 2, distinct : 

 stigmas simple. Capsule obcordate, compressed, 1-celled, with 2 parietal 

 placentae at the base, 2-valved at the summit. Seeds numerous : testa crus- 

 taceous. Embryo minute. — Annual or perennial low herbs, growing in 

 mountain swamps and brooks, with fleshy alternate or opposite crenate leaves, 

 and small yellowish-green flowers. 



1. C. altermfolium (Linn.) : flowering stems erect; leaves alternate, reni- 



form-cordate, doubly crenate or somewhat lobed ; flowers corymbose > 



Engl. hot. I. 54 ; Fl. Dan. t. 366 ; R. Br. ! in Parry's 1st voy. suppl. v. 

 275 ; DC. ! prodr. 4. ^, 48 ; Hook. ! fl. Bor.-Am. 1. j9. 241. 



British North America to the Arctic Islands ; and on the Rocky Mountains, 

 Drummond! Bay of St. Lawrence, &c., Chamisso. 



Z — 2. C. Americanum (Schwein.) : stems slender, decumbent, dichotomoua 

 above ; leaves opposite, the upper ones often alternate, roundish-ovate, ob- 

 scurely crenate-lobed ; flowers dichotomal, distant, sessile. — Schweinitz, in 

 herb. Hook. ; Hook.! fl. Bor.-Am. 1. p. 242 ; Darlingt. fl. Cest. p. 270. 

 C. oppositifolium, Michx.! fl. 1. p. 269 ; Pursh, fl. 1. p. 269 ; Torr. ! fl, 

 1. p. 445, not of Linn. 



Shaded springs, &c. from Saskatchawan ! and Northern States ! to the 

 mountains of Carolina. April-May. — Floral leaves yellowish. Calyx, 

 usually 4-cleft. Stamens usually 8, very short : anthers reddish-orange- 

 color. Seeds hispid, reddish-brown. Certainly difterenl from the C. oppo- 

 sitifolium of Europe, and a much less conspicuous plant. — Golden Saxijrage, 

 Water Carpet. 



3. C. glechomeefolium (Nutt. ! mss.) : " stems slender, ascending ; leaves 

 (deep-green) opposite, roundish, abruptly cuneiform at the base, crenate- 

 dentate with numerous teeth ; flowers [dichotomal or] somewhat co- 

 rymbed, somewhat peduncled, ratlier distant ; segments of the calyx short 

 and obtuse." — C oppositifolium (i. Hook. ! I. c. 



