PAPAVERACE^S. 83 



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1. BRASENIA, Schreber. 

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



1. NTJPHAR, Smith. 

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



SARKACENIACE2E. 



Darlingtonia Calif ornica, 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 leave* ; the uppermost whorled or opposite: sepals 5, caducous: 

 petals 6 in 2 rows, white or yellowish, 



Filiform atigmas 6 to many; ovaries forming a cylinder .' 1 



Stigmaa 3; capsule triangular-ovoid to obovoid or linear 9 



* Herbs with divided or lobed alternate leaw*. 



Sepals 3, winged on the back: half shrubby 8 



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



Sepals 2: stigma slightly 4-8-lobed: slender purplish filaments 6 



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 8 



1. PLATYSTEMON, Bentham, 



I. P. Caltfornicus, Benth. Hirsute: peduncles long, axillary. 



2. PLATYSTIGMA, Bentham. 



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



2. P. Calif ornicum, B. & H. Capsule 9 to 15 lines long: stamens 10 to 12. 



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



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



3. ROMNEYA, Harvey 

 1. B.. Coulteri, Harv. White flowers 3 or more inches broad: glaucous learns 



4. ARGEHONE, Linnaeus. 

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



