264 XCII. SCROPHULARIACEX (HEMSLEY AND SKAN). 
Trine VII.—Gratiolez.— Leaves (the lower at least) opposite. Corolla-tube 
long or sometimes short, not saccate or spurred ; limb nearly equally lobed or 
sometimes more or less 2-lipped ; lobes usually flat, the upper outside in bud 
(except in Lindenbergia, in which the lower lip is outside), Perfect stamens 4 or 
2; anther-cells distinct or subconfluent at the apex, rarely quite confluent. Capsule 
2- or 4-valved. 
* Stamens 4, didynamous, or the upper pair only perfect, 
the lower reduced to staminodes. 
+ Stamens all inserted in the corolla-tube ; lower 
without appendages. 
Calyx tubular or campanulate, 5-toothed or 5-fid. 
Calyx tubular, 5-toothed; anther-cells con- 
tiguous : . 18. MIMULUS. 
Calyx campanulate, B-fid ; anther-celis separate, 
on a 2-branched connective . 5 . 19. LINDENBERGIA. 
Calyx 5-partite or deeply 5-fid. 
Auther-cells confluent at the apex; capsule 
turned downwards : - : . 21. STEMODIOPSIS. 
Anther-cells distinct and separate; capsule 
not turned downwards. 
Woolly or very glandular terrestrial plants ; 
placentas 2, free or united, wingless . 20, STEMODIA. 
Glabrous aquatic or bog plants; placentas 
united into a column which is winged 
on both sides after dehiscence . . 22. LIMNOPHILA. 
Anther-cells distinct but contiguous, not 
confluent at the apex. 
Perfect stamens 4 : é é . 23. MONIERA. 
Perfect stamens 2. . 24, DOPATRIUM. 
+t Upper stamens inserted in the corolla- tube; ‘lower 
stamens inserted at the throat, sometimes 
perfect, usually with variously shaped 
appendages at the base. or reduced to 
staminodes. 
Perfect stamens 4. 
Calyx 5-partite ; segments broad, imbricate ; 
lower stamens with a scale-like appendage ; 
flowers lurge is . 25. ARTANEMA. 
Calyx 5-toothed or if 5- partite with the 
segments narrow and not distinctly 
imbricate; lower stamens gibbous or 
with a minute tooth-like or setaceous 
appendage; flowers small, 
Calyx tubular, plicate or winged, 3-5- 
toothed or 2-lipped. 
Calyx 5-toothed ; lower stamens dilated 
and sharply bent at the base, gibbous 26. CRATEROSTIGMA- 
Calyx slightly 2-lipped; lower stamens 
not sharply bent, with a tooth-like 
or setaceous appendage . . 27. TORENIA. 
Calyx 5-partite, or if tubular not ot plicate or 
winged . 28. LINDERNIA. 
Perfect stamens 2 . . 29. ILYSANTHES. 
** Stamens 2-5 (scarcely didynamous w vhen 4), ine lower 
pair always perfect, the upper either perfect, or 
reduced to staminodes or quite absent. 
