42, RUBIACER. 151 
Order XLII. RUBIACEZ. 
Cal. superior, entire or lobed. Cor. regular, 4—6-lobed. 
Stam. 4—5, alternate with the lobes of the corolla. Ovary 1, 
2-celled, with solitary erect ovules. Style 1, often bifid. Stig- 
mas 2. Fr, a didymous indehiscent pericarp. Embryo straight 
in horny albumen. 
1. SHerarpia. Cor. funnelshaped. Fr. crowned with the 
6-toothed calyx, dry. 
2. AspeRuLA. Cor. funnelshaped. Fr. dry, not crowned with 
the limb of the calyx. 
3. Gaxium. Cor. rotate. Fr. dry, not crowned with the calyx. 
4. Rusia. Cor. rotate. Fr. succulent, 2-lobed. 
1. Suerarpia Linn. 
1. S. arvensis (L.).—E. B. 891.—St. mostly decumbent, 
branched, square, leafy. L.6 in a whorl, obovate-lanceolate, 
acute. Fl. blue, in a small sessile terminal umbel. Cal. of 4 
segments, 2 of them bifid—Fields. A. V.—VII. 
2. AspeRULA Linn. 
[l. A. arvensis (L.); 1. 6—10 in a whorl linear-lanceolate 
obtuse, fl. aggregate terminal surrounded by long ciliated bracts, 
fr. glabrous.—E. B. 8. 2792.—Like Sherardia arvensis. St. as- 
cending, square. Lowermost |. opposite or 4 together, roundish- 
obovate. St. and margins of the l. rough. Fl. bright blue.— 
Occasionally introduced. Devonport. A. VI.] 
[*A. tawrina (L.); 1. 4 in a whorl elliptical acuminate 3-nerved, 
fi. corymbose, cor.-tube very long, fr. punctulate scabrous.—Na- 
turalized. Cadeby, Leicestershire. Casterton Woods, Westmore- 
land. ] 
2. A. eynanchica (L.); 1.4 in a whorl linear, uppermost 1. 
very unequal, fl. corymbose, bracts lanceolate mucronate, cor. 
scabrous, “fr. granular-scabrous.” —E. B. 33.—Root fusiform. 
Stems many diffuse or ascending branched. Fl. generally lilac. 
—Dry banks in limestone districts. P. VI. VII. I 
3. A. odorata (L.); 1. 6—8 in a whorl lanceolate, margins 
scabrous, fl. in stalked terminal corymbs, fr. hispid.— EB. B. 755. 
—St. erect, about 6 in. high. FI. white. L. broad. Whole 
plant fragrant—Woods. P. V. VI. Woodruff. 
