Jeffersonia. BERBERIDACEyE. 53 



short lateral placenta near the base of the cell. Pericarp somewhat baccate, 

 subglobose, 2-3-seeded. Seeds roundish. Embryo very minute at tiie base 

 of nearly horny albumen, excentric. — Rhizoma thick, horizontal. Stem sim- 

 ple, 2-leaved. Leaves large, alternate, peltate in the manner of Podophyllum, 

 semiorbicular-subreniform, deeply 2-lobed ; each division 7-9-lobed; lobes 

 triangular, serrate with triangular teeth. Flowers Avhite, in a simple umbel- 

 late cyme. 



D. cymosa (Michx.! 1. c.)—Ell. sk. 1. ;;. 411 ; NiUt. gen. 1. p. 209; DC. 

 syst. 2. p. 29. 



Along rivulets in high mountains, Virginia to Georgia ! North Carolina, 

 Mr. Curtis ! (in fruit only)— Stem 1-2 feet high. Seeds reddish : testa 

 membranaceous : hilum somewhat unilateral.— De Candolle, in describing the 

 seed, says, " Embryone recto tenui," which is incorrect. Decaisne, {Ann. 

 sci. nat. (2. ser.) 2. p. 359,) who also examined Michaux's specimen, states 

 that the embryo occupies about a third of the length of the albunien. It is 

 really, however, much smaller than this, although the little cavity in Avhich it 

 is situated is sometimes prolonged to near the centre of the albumen, a cir- 

 cumstance which may possibly have misled the observers. In this, as in 

 some other genera, the peculiar disposition of the veins of the pericarp rnay 

 be observed which Morren & Decaisne noticed in Epimedium, and which 

 led these botanists to consider the ovary of Berberidaceee as compound. This 

 peculiarity admits, however, of easy explanation on the supposition that the 

 carpel is formed of a palmately veined leaf. 



5. ACHLYS. DC. syst. 2. p. 35. ; Hook.fi. Bor.-Am. 1. p. 30. t. 12. 



Sepals and petals none ; the achlamydeous flowers sessile in a close 

 spike. Stamens numerous : filaments slender, the outermost dilated at the 

 summit : anthers didymous, subglobose, somewhat unilocular. Ovary 1- 

 seeded : style none : stigma dilated, concave on one side. Seed erect. — 

 A glabrous herb. Rhizoma clothed with glumaceous scales. Leaves radical, 

 on long petioles, ternate : leaflets flabeUiform, sinuate-toothed. Scape very 

 long and slender : flowers small, ebracteate. 



A. triphylla (DC. I. c.) — Leontice triphylla, Smith, in Rees^ cyclop. 

 N. W. Coast, Menzies. Near Fort Vancouver, in deep woods, Dr. Scou- 

 ler I Nuttall ! 



6. JEFFERSONIA. Bart, in trans. Am. phil. sac. 3. p. 334. 



Sepals 4, petaloid. Petals 8, oblong. Stamens 8: anthers linear. Ovary 

 obovate : stigma peltate, subsessile. Capsule substipitate, dehiscent by a 

 transverse chink near the summit. Seeds numerous, crowded in several rows 

 on the broad lateral placenta : aril lacerate, unilateral. Embryo minute, at 

 the base of fleshy albumen. — Rhizoma horizontal, throwing up a simple 1- 

 flowered scape, and 2-foliolate or 2-parted leaves. Habit of Sanguinaria. 



J. diphylla (Pers. syn.)— Pz/rs/i .'/. 1. p. 268; Bot. mag. t. 1513; Torr. ! 

 ft. 1. p. 399. J. binata, Bart. I. c. (with a plate). J. Bartonis, Michx. ! 

 ft. 1. p. 237. Podophyllum diphyllum, Linn. 



