RANUNCULACE^E. 13 



11. DELPHINIUM. Linn. 



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

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

 behind. Capsules 1 5. Polyandria. Di-Pentagynia. 



* Capsules 3 5. Petals free. Perennial. 



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

 ;j 5 parted, many-cleft, lobes linear ; raceme erect ; petals densely 

 bearded at the apex ; flowers on short pedicels. 



HAB. Woods. Penn. to Car. W. to Miss. May. It- Stem 2 

 feet high. Flowers large, blue. 



2. D. cxaltatum Ait. : petioles not dilated at the base ; leaves flat, 

 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. 



HAB. Woods. N. S. Torr. Car. Miss. May. 2J..Stem 2 feet 

 high. Flowers large, light blue. 



** Capsule 1. Petals united. Annual. 



3. D. consolida Linn. : stem erect, somewhat glabrous, divaricately 

 branched ; flowers few, in lax racemes * pedicels longer than the 

 bracts ; capsule smooth. 



HAB. Near cultivated grounds. June. . Stem 2 feet high. 

 Flowers blue. Introduced. Larkspur. 



12. ACONITUM. Linn. 



Calyx petaloid, irregular, deciduous, or marcescent ; upper 

 sepal concave, helmet-form. Petals (nectaries) 2, with long 

 claws, (on peduncles) hooded, recurved. Capsules 3 5. 



Polyandria. Di-Pentagynia. 



A. unduatum Linn. : panicle rather loose, with divergent branches ; 

 i^alea exactly conical ; spur inclined, somewhat spiral ; styles 3 5 ; 

 leaves 3-lobed ; lobes equal. 



HAB. Mountains. Penn. to Car. Sept. If. Stem twining, 

 branching. Leaves coriaceous, deeply 3-lobed. Flowers 3 4, 

 near the summit of each branch, large, purple. De Candolle 

 notices two American varieties of this species. 



13. ACT^A. Linn. 



Calyx deciduous, 4 sepalled. Petals 4. Carpels many 

 seeded. Polyandria. Di-Pentagynia. 



* Carpels dry, dehiscent. 



1. A. racemosaLinn. : leaves ternately decompound ; leafets ovate- 

 oblong, dentate and incised ; racemes panicled, very long ; flowers 



2 



