PAPAVERACEJi. 83 



sule ovoid-globose : style none : stigmas 3, oblong-linear, opposite the three nerviform 

 placenttE and recurved-appressed to tliem. Seeds obovate-obloug, smooth, ueitlier crested 

 nor carunculate. Exiguous annuals. 



4. ARCTOMECON. Sepals 2. Petals 4, rotund-obovate, in age thiu-scarious and persist- 

 ing around the base of the capsule. Stamens indefinitely numerous, sliort : filaments longer 

 than the obloug-liuear anthers. Ovary and subcoriaceous capsule ovoid or obovoid, 3-6(com- 

 monly 4)-valved : style shorter than the globular and lobulate mass of 3 to 6 erect and 

 somewhat united stigmas ; each stigma cordate-bilobed and over a valve, i. e. alternate with 

 the nerviform plaL-euta;. Seeds rather few, oblong, with siuuous-lineolate coat and a narrow 

 crested rhaphe, which is carunculate-dilated at hilum. Herbs. 



* * Petals 8 to 12, not at all crumpled in the bud (which is never drooping), of rather firm 

 texture, deciduous after anthesis of a few days : stigmas (2) alternate with the nerviform 

 placentae, i. e. over the valves : acaulescent herb. 



5. SANGUINARIA. Sepals 2. Petals obovate to oblong-spatulate. Stamens about 24. 

 Ovary oblong, with short and stout style : stigmas 2, thicl^ish, erect and partly united, being 

 confluent at their bases. Capsule fusiform, nearly membranaceous. Seeds with crusta- 

 ceous coat and a loose-cellular crest to the rhaphe. 



* * * Petals 4 to 6, usually (yumpled in the bud, thin and broad, deciduous after anthesis 

 of one or more days. 



-t— Truly shrubby, 2-carpellary : stigmas over the valves, i. e. alternate with the nerviform 

 placentae : flowers lasting two or three days. 



6. DENDROMECON. Sepals 2. Petals 4. Stamens very many. Ovary narrow, tipped 

 with short style and liroadish stigmas. Capsule linear, strictly one-celled, elastically 2-valved 

 from the base upward : valves firm-coriaceous, striate-costate, tardily and often incompletely 

 detached from the exiguous placentae. Seeds oval, flesliy-carunculate at the hilum. 



H— -)— Shrubby-based, pluricarpellary : stigmas over the septiforra placentae : flowers not 

 drooping in the bud, lasting fur a few days. 



7. ROMNEYA. Sepals 3 (rarely with a dorsal wing), externally strigose. Petals 6. 

 Stamens very many. Style none : stigmas 7 to 12, oblong, firm-fleshy and thick, partly 

 cohering in a ring around and incurved over a globular epigynous disk. Ovary and coria- 

 ceous capsule ovate or oblong, strigose-hispid, with 7 to 12 lauielliform at lengtli coriaceous 

 placentae, some or most of which meet in the axis and so form partitions: valves 7 to 12, 

 opening from the summit downward and so denudating the solid placental framework. Seeds 

 slightly incurved, with scrobiculate or rugulose and dull coat, naked at rhaphe and hilum. 

 ^— -I— -I— Herbaceous (except one Argemone) : stigmas over the placentae : sepals 2, or by 



variation 3 and then petals 6. 



++ Capsnle 4-20 carpellary, dehiscent only at top or to near the middle. 



8. ARGEMONE. Flowers erect in the bud and short-peduncled or sessile. Herbage 

 prickly. Sepals often 3 and petals 6. Stamens many. Ovary strictly 1-celled, with 4 to 6 

 nerviform placentis : stigmas oval, somewhat radiate and united on the summit of very 

 short or obsolete style. Capsule 4-6-valved at summit. Seeds scrobiculate, naked, but with 

 salient rhaphe. Juice orange. 



9. PAP AVER. Flower-bud generally drooping on the peduncle until anthesis. Stamens 

 very many. Ovary and capsule globose to oblong, capped by the closely sessile circular flat 

 or somewhat conical disk of the combined radiate stigmas, and dehiscent only under the 

 edge of it by as many dentiform short lids : placentae 4 to 20, septiform, mostly projecting 

 far into the cell. Seeds scrobiculate, naked. Juice mostly white. 



10. MECONOPSIS. Flower-bud drooping before anthesis. Stamens many. Ovary and 

 capsule tipped with a style, and with globular mass of stigmas, one-celled, and with 4 to 8 

 more or less intruded placenta;, dehiscent only by as many short teeth or valves at the sum- 

 mit. Juice orange. 



••-•• ++ Capsule 2-4-carpellary, dehiscent for the whole length, the valves completely sep- 

 arating from the 2 to 4 nerviform placentae : juice orange or yellow. 



