o24 THE SCROPHULARIA FAMILY. 
extremes of heat or cold, and, generally speaking, well-marked by the 2. 
lipped or personate corolla, the stamens in pairs, and the several seeds in 
each cell of the capsule; but there are some anomalous genera in which 
these characters are much modified, and two large and natural exotic 
* families, the Bignonia and Acanthus families, are only to be accurately 
distinguished from Scrophularinee by an attentive study of minute cha- 
racters. To the first of these belong the Bignonias and Tecomas of our 
hothouses, as well as the Catalpa, often planted in our gardens, and (if 
taken in its most extended sense) the numerous hothouse Gesnerias, 
Gloxinias, Achimenes, &. The Acanthacee include Justicias, Ruellias, 
and many modern hothouse genera, besides the European Acanthus, which 
gives its name to the family. 
Corolla rotate or concave, with a very short tube. 
Stamens 2. Corolla 4-cleft, never yellow . ° ° . . 9. VERONICA. 
Stamens 4 or more. 
Tall, coarse, erect plants. Stamens 5, often woolly . . 1. VERBASCUM. 
Small or creeping plants. Stamens 4, glabrous. 
Glabrous, almost stemless plant, with radical leaves and 
minute subsessile flowers } . 6. LIMOSELLA, 
Slender, creeping, hairy plant, with orbicular, ‘alternate ~ 
leaves, and axillary, stalked, minute flowers .  . 7. SIBTHORPIA. 
Corolla with a distinct tube. 
Tube of the corolla with a spear or protuberance at the base, 
the mouth closed by a projecting palate. 
Tube of the corollaspurred . > 3 LINARIA. 
Tube of the corolla with a slight protuberance at the base . 2. ANTIRRHINUM, 
Tube of the corolla straight at the base, the mouth open (ex- 
cept in Melampyrum). 
Calyx with 5 lobes or teeth, or 2 or 3 leafy jagged lobes. 
Corolla nearly globular, small, dingy, with 5 unequal 
lobes, not 2-lipped . - 4. SCROPHULARIA. 
Corolla more than an inch long, ‘with a broad ‘tube, and 
flat, spreading lobes. 
Flowers red or ere: along terminal raceme. Leaves 
alternate . 8. DIGITALIS. 
Flowers yellow, on axillary peduncles, Leaves opposite 5. MIMULUS. 
Corolla less than an inch long, the tube slender or short. 
Calyx inflated after flowering. aes lip of the corolla 
lateraily compressed . 13, PEDICULARIS, 
Calyx tubular or campanulate. "Upper lip of the corolla 
with two spreading lobes . : . it . 11, HUPHRASsIA. 
Calyx with 4 lobes or teeth. : 
Upper lip of the corolla arched or with spreading lobes. 
Anther-cells pointed at the lower end. 
Upper lip of the corolla nearly entire, arched or concave 10, Barrsta, 
Upper lip of the ccrolla 2-lobed, spreading - 11. HUPHRASIA. 
Upper lip of the corolla much compressed laterally. 
Anther-cells obtuse. 
Calyx much inflated, the teeth small : ° . 12. RHINANTHUS. 
Calyx tubular or campanulate, toothed or lobed . 14, MuLamMpyrumM, 
These British genera perene to two of the three principal Tribes or 
Suborders of the family, viz. : 
Tribe Antirrhinee. Upper lip or outer lobe of the corolla outside the others in 
the bud. Genera:—l. VERBASCUM; 2. ANTIRRHINUM; 3. LinaRiIA; 4. ScRoPHU- 
LARIA; and 5. MIMULUS. 
Tribe Rhinanthee. Upper lip or upper lobe of the corolla wholly or partially 
inside the others in the bud. Genera :—6. Lees 7. SIBTHORPIA; 8, Diat- 
TALIS; 9. VERONICA; 10. Bartsia; 11, EUPHRASIA; . RHiINANTHUS ; 13. Pspi- 
CULARIS ; and 14. MELAMPYRUM. 
Among the exotic genera cultivated in our gardens may be mentioned, 
