be Wooton: THE LARKSPURS OF NEW Mexico 
Delphinium occurs in New Mexico mainly as a plant of the 
higher, timber-covered mountains and in these locations is repre- 
sented by the tall leafy-stemmed forms only. None of the speci- 
mens seen represent any of the small tuberous-rooted blue-flowered 
species. The species found in such places belong to what may be 
called the scopulorum and the occidentale groups. On the plains 
at the southern end of the Territory occurs D. camporum Greene. 
According to Dr. Greene this species is to be looked for on the 
plains east of the Rocky Mountains from New Mexico to Wyoming, 
but the material I have seen does not show it from any point in 
this Territory north of the southern third ; and these specimens 
do not agree exactly with the original description of the species. 
The material seems to indicate that the species are nearly 
related, and have relatively small areas of distribution over which 
they are not variable. Widely separated mountain ranges seem 
to be occupied by separate species. 
Key to the species 
Plants low, with leaves forming a cluster about the base ; stem- 
leaves few and small, or none 
Flowers whitish or light- colcwed 1. D. camporum. 
Flowers blue. 
Leaves with numerous narrow Sige RN inflores- 
cence short, flowers small and crowded 
Leaves few, with thickish Seana ; inflorescence 
scape-like, flowers rather La and scattered.. 3. 
Plants tall, 1 m. or more, with leafy 
Segments of the leaves more or sis oblong to linear, 
kes age oe the basal segments - 
ncedly c ; pubescence of short curled 
fake oe ier rarely if ever glandular. 
Bracts of the inflorescence expanded and at least the 
lowest resembling the foliar leaves 4. D. amplibracteatum. 
Bracts of the inflorescence narrowly linear. 
lants of medium height, about I m. 
Ultimate segments of the leaves oblong... 
S 
confertiflorum. 
S 
. SCaposum. 
5. D. scopulorum., 
Ultimate segments of the leaves narrowly 
linear . D. tenuisectum. 
Plants more robust, 2 m. high or more.......... . D. robustum. 
Segments of the leaves more or less narrowly diamond- 
shaped in outline with acute or acuminate apex and 
cuneate base ; pubescence of spreading hairs, more 
or less glandular, at least in the inflorescence 
(except in No 
Flowers deep blue. 
e 1 = rs 
11. D. Cockerelliz. 
