324 APPENDIX. 



Page 107. Genus ARALIA. [Order Araliacese, to precede 



Panax. ] 



Flowers usually perfect. Calyx entire, or5-toothed. Petals 5, 

 spreading. <S/a;7ie?z5 5, alternate with the petals, short. Styles 

 5. Fruit baccate, 5-Iobed,5-celled, with a solitary suspended 

 seed in each cell. Herbs and shrubs, when thelatter, prickly. 



1. A. Racemosa. Stem much branched, glabrous. Leaves compound, 

 3-parted, with the divisions 3-5-leaved ; leaflets glabrous, ovate, acuminate, 

 acutely serrate, frequently cordate ; petioles pubescent. Flowers in umbels^ 

 disposed in racemose panicles, small, greenish white. Spikenard. 



% July. Mountains. 3-5 ft. 



2. A. Spinosa. a shrub, or small tree. Stem usually prickly, scarcely 

 branched. Leaves crowded at the summit of the stem, bipinnate ; leaflets 

 ovate, acuminate ; petioles often 2-3 feet long. Flowers in terminal panicles. 



. Petals oval, reflected, caducous. Styles 5, short. 

 White, ^i June— Aug. Common. 5-40 ft. 



3. A. NuDicAULis. Stern short or none. Leaf 1, radical, with the petiole 

 elongated, 3-cieft, each division pinnately 5-foliate, leaflets oblong ovate, acu- 

 minate, serrate. Flowers in 3 umbels without an involucre. SarsapariUa. 



Greenish white. June — July. Mountains. 12-18 in. 



Page56. Genus BERCHEMIA. {Zizyphus of Ell.) [Order 

 RhamnaceaB, to precede Rhamnus. 



Flowers dioecious. Calyx tubular, 5-parted with erect seg- 

 ments. Petals 5, convolute. Stamens enclosed by the petals. 

 Ovary half enclosed in an annular disk. Stamens 5. Style 

 1. Fruit druoaceous, with a lons". 2-celled nut. Flowers in 

 small racemose panicles. A climbing shrub, with tough, flex- 

 ible, pendant branches. 



1. B. VoLUBiLis. Leaves ovate, ribbed, slightly undulate, mucronate, gla- 

 brous. Flowers in small umbels, racemes, or panicles, axillary and terminal. 

 Fruit drupaceous, 1-2-seeded, purple. 



Tj May — June. In rich, damp soils. 12-15 ft. 



Page 285. Gextjs MARTSCUS. [Order Cyperacese, to pre- 



cede Kyllingia,] 



Flowers in spikes, clustered in heads. Spikes 1-8-flowered. 

 Stamens 3. Style 2-cleft. Seeds and stem triquetrous. 

 Seed naketl. 



1. M. Retrofractus. iS^em naked, pubescent, obtusely 3-angled. Leaves 

 pubescent, hnear. Spikes 1-3-flowered, reflexed, collected into an obovate 

 head. Seed oblong, destitute of bristles. 



June — Aug. Cultivated lands. Common. 1-2 ft. 



2, M. CYLiNrEicus. ScTw naked, pubescent, obtusely 3-angIed. Leaves 

 linear, channeled, glabrous. Spikes 2-4 flowered, crowuled, compressed. — 

 Glumes keeled acute. Seed acute without bristles. 



June — Aug. Common, about cuUivated field?. 2-3 feet. 



