PAPAVEKACE.E. 9 



1. PAPAVER, Pliny (Poppt). Sepals 2. Petals 4. Ovary with 4 or 

 more intruded placentas which partially divide the interior of the obovoid 

 or subglobose capsule, this opening by short roundish or triangular 

 apertures near the summit between the parietal ribs: stigma 4 — 8-lobed, 

 Sessile and the lobes radiating over the summit of the ovary and capsule, 

 or raised on a short style and the lobes capitate-recurved. Seeds oo , 

 small, scrobiculate or reticulate. 



1. P, Californicum, Gray. Sparsely pilose-pubescent, 1 — 2^ ft. high 

 leafy below; leaves pinnately parted or divided into acutish toothed or 

 3-lobed.or entire segments: peduncles elongated; corolla 2 in. broad; 

 petals brick-red, with a green spot at the base bordered with rose-red: 

 capsule )4. i n - long or more, clavate-turbinate, 6 — 11-nerved; stigmas 

 sessile and radiating, forming a flat cap to the pod; the short valvular 

 openings somewhat quadrate: seeds coarsely and faintly reticulate. — 

 Marin Oo. 



2. P. Leiiimoui, Greene. Near the preceding, but larger, 1 — 3 ft. 

 high : corolla 1 — 3 in. broad, apparently of a deeper red, the base of the 

 petals green: capsule broader and merely obovate; stigmas 7 — 10, their 

 lower half sessile and radiant upon the pod, the upper half coherent and 

 forming a conical apiculalion. — Marin Co. and southward. 



3. P. heterophyllum (Benth.), Greene. Aspect and size of the two 

 preceding, but the segments of the pinnately divided leaves singularly 

 variable upon the same leaf, some linear, others in close juxtaposition 

 oval; stigmas capitate, raised on a slender style: red flowers large, nodding, 

 the stamens declined. — On wooded slopes. 



4. P. erassifolium (Benth.). Smaller than the preceding, much 

 more branching and floriferous, the foliage smaller and more fleshy : fl. 

 small, erect, the stamens not declined. — In dry fields of the interior; never 

 with P. heterophyllum or even near it. 



2. PLATYSTEMOX, Benth. Annual glaucescent glabrous or hirsute 

 herbs with entire leaves; the cauline opposite or verticillate. Flowers 

 rather small, white or cream-colored, on slender peduncles. Sepals 3, 

 cadueouB. Petals 6. Stamens 6 — oo ; filaments filiform or flattened; 

 anthers oblong to linear. Carpels 3 — oo , in maturity variously more or 

 less united, or quite distinct. Seeds smooth and shining. 



*Carpels 6—$B, torulose, jointed between the seeds. 



1. P. Californicns, Benth. Branching from the base 6—12 in. high, 

 sparingly hirsute: lowest leaves alternate; cauline opposite, all linear, 

 entire, 2—4 in. long, sessile or clasping, obtuse: flower-buds ovoid; sepals 

 hirsute : petals % in. long or more, pale yellow with a deep greenish- 

 yellow spot at base, sometimes reddish tinged on the outside; stamens oo ; 



