Tas. 4867. 
STYLOPHORUM opipeHyuuvmM. 
Two-leaved Stylophorum. 
Nat. Ord. PAPAVERACES.—POLYANDRIA MONOGYNIA. 
Gen. Char. Calyx diphyllus, foliolis pilosis, sestivatione valvatis, caducis. 
Corolle petala 4, hypogyna, obovata, decidua. Stamina plurima, hypogyna ; 
filamenta filiformia; anthere terminales, extrorse, biloculares, loculis longitudi- 
naliter dehiscentibus. Ovarium oblongum, uniloculare. Ovu/a juxta placentas 
intervalvulares, 3-4, plurima, anatropa. Stylus terminalis, columnaris; stigma 
capitatum, tri-quadrilobum. Capsu/a elliptica, setosa, unilocularis, apice valvis 
3-4 incompletis revolutis inter placentas filiformes persistentes dehiscens. Semina 
plurima, scrobiculato-punctata, strophiolo umbilicali cristeeformi.—Herbee Joreali- 
Americane, perennes, succo flavo replete, foliis paucis v. geminis, summis oppositis, 
pinnatifidis, floribus terminalibus, subcorymbosis, luteis. Endl. 
STYLOPHORUM diphyllum. 
SrynopHorum diphyllum, Nuttall, Gen. v.2.p.7. Gray, Gen. Plants US. t. 48. 
Botany of the Northern United States, p. 27. 
StYLopHorum petiolatum, Nuttall. 
StyLopHorum Ohioense. Spreng. Syst. v. 2. p. 570. 
Meconopsts diphylla. DC. Syst. v. 2. p. 88. Prodr.v. 1. p. 121. Torrey et 
Gray, Fl. N. Am. v. 1. p. 61. 
Meconopsis petiolata. DC. 1. c. 
CuEtipontum diphyllum. Miche. Fl. v. 1. p. 309. 
A native of woods in the Western United States, whence all 
our specimens are much larger than the cultivated ones, with 
pinnatisect or bipinnatifid leaves and axillary flowers, from what 
appear as involucral leaves in our specimen, becoming large and 
bearing leaf-buds with flowers in their axil. The plant figured 
was raised from seed sent by our esteemed friend Dr. Asa Gray, — 
Professor of Botany in Cambridge University. 
Drscr. Plants six inches to a foot high, of rather a pale green 
colour and succulent texture, resembling Meconopsis Cambrica, the 
petioles, stems, and peduncles loosely. covered with spreading 
sete. Radical leaves broadly oblong or ovate, blunt, pinnatifidly 
lobed, cordate at the base; the segments lobed and crenate, 
glaucous below. Cawline leaves generally two, opposite, and 
AUGUST 1st, 1855. : 
