148 BERBERIDACEAE. 



Family 56. BERBERIDACEAE. Barberry Family. 



Primary leaves of the shoots reduced to spines ; in their axils short branches with 



secondary, unifoliate leaves. j. Beebeeis. 



Primary leaves of the shoots pinnate ; no spines. ^. Qdostemon. 



i. BERBERIS L. Barberry. 



I. Berberis Fendleri A. Gray. In the mountains of Colo, and N. M. — Alt. 

 6000-7000 ft. — Durango; Mancos; Arboles; Mancos Caiion. 



J.. ODOSTEMON Raf. Oregon Grapes. 



Fruit becoming dry and inflated at maturity; leaflets less than 3 cm. long; shrub 

 15-36 dm. high. 1. O. Fremontii. 



Fruit fleshy, not inflated at maturity ; leaflets 3-6 cm. long ; shrub prostrate, 1-3 

 dm. high. 2. O, AquifoUum. 



1. Odostemon Fremontii (Torn) Rydb. (Berberis Fremontii Torr.) In the 

 mountains of Colo., Utah, N. M. and Ariz. — ^Smith Fork Caiion, Delta Co. 



2. Odostemon Aquifolium (Pursh) Rydb. (Berberis AquifoUum Pursh; B. 

 repens Lindl.) On hills from Mont, and Ida. to N. M. and Calif. — Alt. 4000- 

 10,000 ft. — -Vicinity of Horsetooth ; Horsetooth Gulch ; Rist Caiion ; Clear 

 Creek Caiion, above Golden ; Platte Caiion ; Ouray ; Snake River ; hills south- 

 east of La Veta; East Indian Creek; Veta Mountain; caiion of La Plata 

 River ; foot-hills, Larimer Co. ; about Ouray ; Lake City ; near Boulder. 



Order 26. PAPAVERALES. 



Sepals 2 or 3 ; endosperm present. 



Flowers regular; stamens in ours numerous. 57. Papaveraceae. 



Flowers irregular ; stamens 6, diadelphous. 58. Fumaeiaceae. 

 Sepals 4, rarely more ; endosperm wanting. 



Capsule 2-celled; stamens 6, tetradynamous, rarely 2 or 4. 59. Brassicaceae. 



Capsule i-celled; stamens not tetradynamous, 6 or more. 60. Cappaeidaceae. 



Family 57. PAPAVERACEAE Juss. Poppy Family. 



Capsule opening by many dentiform lids under the stigma ; placentae ceptiform. 



I. Pap.wee. 

 Capsule opening by 4-6 valves at the summit ; placentae nerviform. 2. Argemone. 



I. PAPAVEE L. Poppv. 



I. Papaver radicatum Rottb. (P. alpinum and P. nudicaule A. Gray; not 

 L.) In arctic regions and on alpine mountain tops from Greenl. and Lab. to 

 Alaska and in Colo. ; also in Europe. — Alt. 13,000-14,000 ft. — Gray's Peak. 



2. ARGEMONE L. Prickly Poppy. 



Corolla yellow. i. A. mexicana. 



Corolla white. 



Stem unarmed or prickly, but not hispid pubescent. 2. A. intermedia. 



Stem hispid pubescent as well as spiny ; leaf-blades deeply and usually doubly 

 lobed. 3. A. hispida. 



