\' ft A XUNCU L ACE.*i. 



Rocks. Throughout the U. S. and Can. N. to Hudson's Bay. April, May. 

 fy. _ Ste/w 1 2 feet high, branched above. Leaves glaucous ; radical ones 

 biternate, the upper ones becoming gradually more simple. Flowers yellow 

 and scarlet. Wild Columbine. 



11. HELLEBORUS. Atos. Hellebore. 



(From the Greek e\st v, to cause death ; and 0opa,food ; on account of its poison- 

 ous properties.) 



Sepals 5, persistent, mostly greenish. Petals 8 10, very 

 short, tubular, 2 -lipped. Stamens numerous. Stigma orbicu- 

 lar. Follicles 3 10, slightly cohering at the base, coriaceous, 

 many-seeded. Seeds elliptical. 



H. xir id-is Linn. : radical leaves glabrous, pedately divided ; the cauline 

 few, nearly sessile, palmately parted; peduncles often geminate; sepals 

 roundish-ovate, green. 



On the plains near Jamaica, and in a wood near Brooklyn, N. Y. April. 



Stem about a foot high. Radical leaves on long petioles. Flowers an inch or 

 more in diameter. A naturalized foreigner. Torn 4- Gr. 



Green Hellebore. 



12. DELPHINIUM. Linn. Larkspur. 



(From the Greek df.\<piv, a dolphin ; from the shape of the upper sepal.) 

 Calyx deciduous, petaloid, irregular, the upper sepal pro- 

 duced downward into a spur. Petals 4 ; 2 upper ones horned 

 behind. Ovaries 1 5. Follicles many-seeded. 



* Ovaries 3 5. Petals free. Perennial. 



1. D. azureum Mich.: petioles a little dilated at the base; leaves 3 5 

 parted, many-cleft, lobes ^linear ; raceme erect; petals densely bearded at 

 the apex ; flowers on short pedicels. 



Woods. Penn. to Geor. W. to Miss. May. '2J-. Stem 2 feet high. Flow- 

 ers large, blue. Azure Larkspur. 



2. D. exaltatum Ait. : petioles not dilated at the base ; leaves flajt, 3 7 

 cleft beyond the middle ; lobes wedgeform, 3-cleft at the apex, acuminate ; 

 lateral ones often 2-lobed; raceme erect; spur straight, as long as the 

 calyx ; capsules 3. D. tridactylum Mich. 



Woods. Penn. to Car. W. to Miss. May. '2L Stem 2 feet high. Flowers 

 large, light blue. High Larkspur. 



3. D. tricorm Mich. : petioles smooth at the base, scarcely dilated ; leaves 

 5-parted, lobes 3 5-cleft ; segments linear ; petals shorter than the calyx ; 

 carpels reflexed, spreading at base, arcuate. 



Hills and woods. Penn. to Louis. W. to Arkansas. April, May. 1J.. Stem 

 6 8 inches high. Raceme loose, 6 12 flowered. Flowers bright blue, some- 

 times white. Three-horned Larkspur. 



** Ovary solitary. Petals united. Annual. 

 4.. D.Consolida Linn.: stem erect, smoothish. divaricately branched; 



