FIGWORT FAMILY 691 



Lobes of calyx ciliate, the calyx thrice as long as wide; stems ascending and growth 

 relatively open 

 Corolla yellow, 12-17 mm. long, its limb widely spreading; leaf-blades linear- 

 lanceolate. o3. M. montioides. 

 Corolla yellow or purple, 8-9 mm. long, its limb little spreading; leaf -blades 

 oblong-lanceolate. 34. M. rubcllus. 

 Lobes of calyx eciliate, one and one-half to two and one-half times as long as wide; 

 corolla yellow (rarely purple), 5-7 mm. long. 



35. M. Suksdorfii. 



Pedicels 15-27 mm. long, 3-5 times length of bracts, permanently ascending; anthers and 

 stigmas exposed by reflexing of upper corolla-lobes; leaf-blades oblong, rounded, 

 crenately dentate, hardly veined, rounded-clasping at base. 



36. M. androsaceus. 



Stigmas ciliatef ringed; basal tube of corolla surpassing calyx and evidently widened to throat. 



Corolla yellow with upper lip purple, or else yellow throughout, vertically displayed, the 



lower lip recurved-deflexed and hirsute; pedicels 1-2 times the length of the bracts. 



37. M. barbatus. 



Corolla purple, horizontally displayed, the lower lip decurved-spreading and finely puberu- 

 lent to glabrous; pedicels more than twice the length of the bracts. 



Calyx-lobes ciliate; corolla-throat abruptly expanding, the lobes rounded and entire. 



38. M. gracilipes. 



Calyx-lobes eciliate or nearly so; corolla-throat gradually expanding, the lobes of the 

 lower lip erose or notched. 

 Ventral ridges of corolla scarcely evident, glabrous or nearly so; pedicels ascend- 

 ing, filiform, 15-50 mm. long; leaf-blades entire. 



39. M. purpureus. 



Ventral ridges of corolla well-developed, pubescent; pedicels spreading, less 

 slender, 25-45 mm. long; leaf-blades obtusely denticulate to dentate-lobed. 



40. M. diffusus. 



Capsule longer than and projecting from calyx, which is only 2-3 mm. long. 



41. M. exiguus. 



III. MiMULOIDES. 



Annual villose herb, with yellow corolla only 4-9 mm. long. 42. M. pilosus. 



IV. SiMIOLUS. 



Bracts narrowed to petioled or rarely sessile bases (if sessile, with blades linear to lanceolate). 



Main leaf-blades oblong-lanceolate, dentate; corolla 15-20 mm. long, with small brown spots on lower lip; 



pedicels 20-30 mm. long. 43. M. nudatus. 



Main leaf-blades dentate to mostly pinnatifid-lobed or even laciniate-pinnatifid; corolla 6-13 mm. long, 

 usually with large brown distal blotch on lower lip; pedicels 15-45 mm. long. 



44. M. laciniatus. 

 Bracts rounded to sessile or clasping bases (or, if petioled, with blades rounded or cordate at base). 

 Bracts distinct or only slightly connate; plants not glaucous. 



Uppermost calyx-lobe linear-attenuate, the lowest pair of lobes upcurving 90° to close against it; 

 corolla 10-30 mm. long, often with brown blotch on lower lip; leaf-blades rounded, sinuately 

 and irregularly sharply dentate. 45. M. nasutus. 



Uppermost calyx-lobe less sharp, acute to obtuse at tip, the lowest pair of lobes usually upcurved less 

 than 90°; leaf -blades more regularly denticulate or dentate, or else sharply cut proximally. 



Main leaf-blades acute or acutish or, if rounded, the flowers few; plants low, except in M. decorus. 

 Corolla 8-15 mm. long, less than twice length of calyx; calyx 7-10 mm. long, strongly 

 purple-spotted, the lowest lobes becoming upcurved 90°; leaf -blades widely ovate, 

 dentate. 46. M. pardalis. 



Corolla 20-50 mm. long, more than twice length of calyx; calyx more than 10 mm. long, 

 less strongly or not purple-spotted, the lowest lobes upcurved less than 90°; leaf-blades 

 ovate to elliptic-ovate (or narrower), saliently dentate to entire. 

 Pedicels with glandless hairs only. 



Corolla 30-50 mm. long, deep yellow, its orifice only partially closed by uparching 

 palate; leaf -blades ovate; stems erect or somewhat decumbent. 



Blades ample (3-6 cm. long), saliently dentate with 9-15 pairs of teeth; pedicels 

 finely pubescent. 47. M. decorus. 



Blades small (1.5-3 cm. long), dentate with about 6 pairs of low teeth; pedicels 

 finely pubescent to glabrous. 48. M. veronicifolius. 



Corolla 20-30 mm. long, light yellow, its orifice closed by uparching palate; leaf- 

 blades elliptic-ovate or narrower, the larger 1-2 cm. long; stems ascending or 

 diffusely spreading. 49. M. minor. 



Pedicels with gland-tipped hairs or, if glabrous, the distal foliage and calyces somewhat 

 glandular. 

 Leaf-blades 0.5-1.2 cm. long, denticulate to entire; throat of corolla triangular, its 

 orifice only partially closed by the palate; plant relatively densely matted. 



50. M. caespitosus. 



Leaf-blades larger, sinuately and usually saliently dentate; throat of corolla more 

 depressed, the orifice nearly or quite closed by the palate; plant usually more 

 loosely matted. 51. M. Tilingii. 



Main leaf-blades more rounded (acutish to usually widely rounded) ; racemes longer and usually 

 indefinitely elongating. 



Pedicels with glandless hairs only. 



Leaf-blades not lobed at base nor bracts more hirsute than the similar foliage-leaves; 

 plants less than 3 dm. tall, the slender stems often diffuse. 

 Corolla 15-22 mm. long, more than twice the length of calyx; stem erect or diffuse. 



52. M. microphyllus. 

 Corolla smaller, less than twice the length of calyx. 



Fruiting calyx about two-thirds as wide as long; leaf-blades O.S-1.5 cm. long 

 and wide, usually denticulate; stem erect. 



61. M. longulus. 

 Fruiting calyx more than two-thirds as wide as long; leaf -blades 1.5-2 cm. 

 long, orbicular or slightly wider than long, more sharply serrate; stem 

 decumbent-ascending. 53. M. clementmus. 



