148 i',i:Rni:Rii).\ci:Ai:. 



Family 56. BERBERIDACEAE. Barhkrrv Famii.v. 



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



secondary, unifoliatc leaves. i. Bkrberis. 



Primary leaves of the shoots pinnate ; no spines. 2. Odostkmon. 



I. BERBERIS L. Barberky. 



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

 6000-7000 ft. — Durango; Manccs; Arbolcs; Mancos Canon. 



2. ODOSTEMON Raf. Oregon Grapes. 



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

 15-36 dm. high. i. O. Freinontii. 



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

 dm. high. 2. O. Aquifolittiu. 



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

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



2. Odostemon Aquifolium (Pursh) Rydb. {Berberis Aquifoliitm Pursh ; B. 

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

 10,000 ft. — Vicinity of Ilorsetooth; Horsctooth Gulch; Rist Canon; Clear 

 Creek Caiion, above Golden; Platte Canon; 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. Fumariaceae. 

 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. Capparidaceae. 



Family 57. PAPAVERACEAE Juss. Poppy F'amily. 



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



I. Papaver. 

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



I. PAPAVER L. Poppy. 



1. Papaver radicatum Rottb. (P. alpinimi and P. niidicaule 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. 



