18 PAPAVERACE.B, • 



1. BRASENIA, Schreber. 

 1. B. peltata, Pursh. Leaves 2 to 4 inches long: white or purplish flowers. 



1. NUPHAR, Smith. 

 1. N. polysepalum, Engelm. Leaves 6 to 12 inches long; stigma broad. 



SARKACENIACEiE. ' 



Darling:tonia Californica, Torrey. Hooded tubular leaves with a pair of mus- 

 tache-like appendages above the opening: solitary flower nodding on a bracteate scape. 



PAPAYERACEJE. 



* Herbs with entire narrow leaves ; the uppermost whorled or opposite: sepals 3, caducous: 

 petals 6 in 3 rows, white or yellowish. 



Filiform stigmas 6 to many; ovaries forming a cylinder .• 1 



Stigmas 3; capsule triangular-ovoid to obovoid or linear 2 



* * Herbs with divided or lobed alternate leaves. 



Sepals 3, winged on the back: half shrubby 3 



Sepals 3 or 2, sharp-horned: bristly with stiff prickles 4 



Sepals 2: stigma slightly 4-8-lobed: slender purplish filaments 5 



Sepals united into a conical cap: slender stigmas unequal . . .« 6 



* * * Shrubs or woody based perennials. 



Sepals 2: buds globular: stigmas 2: leaves entire 7 



Sepals 3: petals 6, very large, white: leaves pinnatifid 3 



1. PLATYSTEMON, Bentham. 



1. P. Californictis, Benth. Hirsute: peduncles long, axillary. 



2. PLATYSTIGMA, Bentham. 

 lineare, Benth. Hirsute: stems short: peduncles long: stamens many. 

 Californicum, B. & H. Capsule 9 to 15 lines long: stamens 10 to 12. 

 Oreganum, B. & H. Capsule shorter: stamens 4 to 6: smaller, 

 denticulatum, Greene. Leaves denticulate: stamens 6 to 9. 



3. ROMNEYA, Harvey. 

 1. Br. Coulteri, Harv. White flowers 3 or more inches broad: glaucous leaves. 



4. ABGEMONE, Linnseus. 

 1, A. hispida, Gray, Densely prickly, petals and stamens only excepted. 



1. P 



2. P 



3. P 



4. P 



