§04 THE AMERICAN MIDLAND NATURALIST 
Mairania Necker, Elém, Bot. Gen. 363. (1790). Is a monotyp- 
ic genus: M. alpina (L.). 
794. Arbutus Uva ursi Linn. Sp. Pl. 395. (1753). 
Arctostaphylos Uva ursi (Linn.) Spreng. Syst. 2: 287. (1825). 
Mairania Uva urst Desv. Journ. Bot. 3: 38. 
McHenry County: Sand Hills. 
Family 97. PRIMULACEAE Vent. Tabl. 2: 285. (1799). 
AMADEA Adans, Fam. II. 230. (1763). 
Aretia Haller, Enum. 485. (1742), picked by Bubani, is A. 
alpina which even Linnaeus kept separate from Androsace; this 
name he borrowed from Dioscorides (3: 140), and it is not available 
because one does not know what it is. 
795. Amadea occidentalis (Pursh) Lunell. 
Androsace occidentalis Pursh, Fl. Am. Sept. 137. (1814). 
Pleasant Lake, Towner, Williston. ' 
796. Amadea diffusa (Small) Lunell. 
Androsace diffusa Small, Bull. Torr. Bet. Club. 25: 318. (1898). 
Leeds, Butte, Dunsieth; Dickinson (Cl. Waldron). 
797. Amadea puberulenta (Rydb.) Lnell. 
Androsace puberulenta Rydb. Bull. Torr. Bot. Club 30: 260. 
(1903). 
From New Mexico to Manitoba, acc. to the Manuals. 
STEIRONEMA Raf. Ann. Gen. Phys. 7: 192. (1820). 
798. Steironema pumilum Greene, Leaflets II: 111. (1910). 
Leeds, Butte. 
799. Steironema longipedicellatum Lunell, comb. nov. 
Steironema pumilum var. longtpedicellatum Lunell, in A. Midl. 
Nat. Vol. II: 157. (1912). Stems ascending from narrow, slender, 
horizontal rootstocks. Leaves dark green, very thin, broadly 
ovate, obtuse or subcordate at the base. Filaments tapering from 
below upwards, of the same length as the anthers. Corolla 20—25 
mm. diam., granular. Fruiting pedicels 3-5 cm. long, variously 
curved, as long as the subtending leaf, or often longer. 
Leeds, Butte, Pleasant Lake, Bismarck. 
800. Steironema ciliatum (lLinn.) Raf. Am. Gen. Phys. 
7: 192. (1820). 
Lysimachia ciliata Linn. Sp. Pl. 147. (1753). 
Leaves ovate or ovate-lanceolate, light green, firm. Filaments 
of equal thickness along their whole length. Anthers twice as long 
as the filaments. Corolla 25—30 mm. diam. Fruiting pedicels 
