AN ACCOUNT OF THE GENUS ARGEMONE. 329 



3. Argemone ALBALestib. (ilabiaglaucescens, ramisascendenti- 

 bus gracilibus uudique densius foliosis cauleque iuermibus vel aculcis 

 pateiitibns ai'inatis, foliis berbaceis margiue sinuatis cnicoideo- 

 spinosis, venis albidis ; iloribus siqira bracteas 1-3 secus ramos 

 plus minus elongates dispositas singulis vel rarius 2 terminalibus; 

 sepalis sub apicem in cornu brevissimum conicum berbaceum pro- 

 ductis extus glabris vel aculeis parvis perpaucis obsitis ; petalis 

 albis oblongis basi angustatis apice truncatis; capsulis fusiformibus 

 4-valvis, stylo distincto, valvis tenuioribus reticulatis aculeis sub- 

 aequalibus basi vix dilatatis obsitis ; seminibus globosis distiucte 

 reticulatis. 



Var. typica; foliis floribusque minoribus aculeis ascendenti- 

 patentibus. An/enione alba [Jussieu MSS.] Lestib. Bot. Belg. 

 ed. 2, iii. pt. 2, 182 (1799). A. albijiora Horuem. Hort. Hafn. 489 

 (1815); Sims, Bot. Ma,/, t. 2842 (1822); Otto & Dietr. Alhjem. 

 (jrartenzeit. i. 300 (1883). A. (j-eorijinna Croom, Am. Journ. Sc. 

 Ser. 1, XXV. 75 (1834). An/eiiione sp.nov., Nuttall, (Jeii. ii. 9 

 (1818); Elliott, Bot. Car. Geonj. ii. 13 (1820). A. mexicana var. 

 albifiora DC. Syst. Veq. ii. 80, syu. A. alba Raf. et syn. Haller et 

 Zinn. exclus. (1821) ;' Pm/r. i. 120 (1824j ; Lindl. Bot. Reg. sub 

 t. 1343 (1830). A. mexicana var. a. Lamk. Encyc. Meth. i. 247 

 (1783); Syn. PI. 2Ius. Fl. (1806); De Freyl. Cat. Jard. Butt. 

 (1810); Cat. PL Hart. Patar. (1812); Vig. Hist. Nat. Pav. 50 

 (1814) ; Walp. Rep. i. 109 (1842). A. mexicaria var. ; Pursb, Flor. 

 N. Amer. 368 (1814). A. mexicana var. y. Torr. & Gray, Flur. N. 

 Amer. i. 61 (1838). A. mexicana Hook. Journ. Bot. i. 190, quoad 

 spp. apud Covington lecta (1834); Cliapm. Fl. S. Unit. St. 21, 

 quoad plantam albifloram [A. mexicana var. alba Chapm. MSS. 

 in Herb. Duraud !] (1860) baudquaquam Linn. A. ridyaris var. 

 albifiora Spacb, Hist. vii. 86 (1839). 



America : Florida, Nuttall ! Chapman ! Georgia, Herb. Paris ! 

 S. Carolina, " .1/. A. C'." in Herb. iJrakel Louisiana vel Alabama, 

 apud Covington, Drximmondl Texas, apud San Felipe, Drummondl 



Var. ylanca: foliis floribusque magnis, aculeis reflexis. Arye- 

 mone rosea Hook. Bot. Misc. ii. 207, quoad spp. iSandvicensia (1830). 

 A. mexicana var., iSincl. Fl. Hawaii, t. 17 (1885). A. mexicana 

 Seem. Bat. Her. 23, in parte (1852) ; Hillebr. Flor. Hawaii, 7 

 (1888), baudquaquam Linn. [A. glauca Nuttall MSS. in Herb. 

 Brit. Museum. A. lactucajolia Planch. MSS. in Herb. Kew.] 



Polynesia : Ins. Sandvicenses ; Oaliu, Nuttall ! Menzies et Nelson ! 

 G. Barclay ! Rewy ! Dna. Sinclair ! Maui, Macrae ! Ballieu ! 



Herbacea gracilis 30-90 cm. altis ramis floriferis gracilibus 

 4-10 cm. longis ; foliis in var. typica 4-8 cm. longis, l-5-2'5 cm. 

 latis ; in var. ylauca 10-25 cm. longis, 6-12 cm. latis ; sepalis. 

 2-2-5 cm. longis, coruubus 3 mm. longis, alabastris 1*5 cm. latis; 

 floribus 6-8 cm. latis ; capsulis 2-5-3-5 cm. longis, 2 cm. latis, 

 stylo 4-6 mm. longo ; seminibus 2-5 mm. latis. 



The plant here described as typical A. alba was first differenti- 

 ated by Lamarck, who described it as a variety of A. mexicana. It 

 differs, however, so greatly in the shape as well as in the colour of 

 the petals, in the shape and size of the horns of the sepals, and in 



