FLOWERING PLANTS AXD FERNS OF ARIZONA 81 £ 



8. Plant usually perennial, with a rootstock or stolons, or with the 

 flowering stems rooting at the lower nodes; fruiting calyx only 

 partly closed by the infolding of the lower teeth, the upper tooth 

 commonly less than 3 times as long as the other.-, usually slightly 

 ascending: corolla seldom less than 2 and up to 4 cm. long. 



7. M. GtJTTATUS. 



8. Plant usually annual: fruiting calyx almost completely closed, the 



upper tooth 3 or more times as long as the others, horizontal or 



nearly so : corolla commonly less than 2 cm. long. _ 8. M. nastjttts. 



5. Fruiting calyx not strongly asymmetric, the upper tooth not or barely 



longer than the others; corolla only slightly bilabiate, not more 



than 20 mm. long (9). 



9. Calyx becoming much inflated, not strongly prismatic, campanulate in 



fruit; plant annual, viscid-villous; leaves mostly distinctly petioled, 



much shorter than the internodes, the blades broadly ovate, dentate 



or denticulate; corolla 7 to F5 mm. long, narrowly funnelform, 



yellow, the throat dotted or streaked with red, sometimes obscurely 



SO 9. M. FLORIBUXDUS. 



9. Calyx not becoming much inflated (except as distended by the enlarging 



capsule), strongly prismatic, narrowly obconic in fruit, often with 



conspicuous, dark-colored ribs: leaves sessile or nearly so, the blades 



entire or shallowly dentate: corolla lobes usually emarginate or 



obcordate (10). 



10. Plant perennial, with filiform stolons or underground rootstocks and 



bulbils, scapose to subcaulescent with very short internodes (the 



stems up to 10 cm. long and bearing none to several pairs of leaves;, 



glabrous or sparsely (seldom copiously) viscid-villous; flowers 



solitary on erect filiform pedicels much surpassing the leaves; 



leaf blades elliptic, oblanceloate, or obovate; corolla 8 to 20 mm. 



long, broadly funnelform, yellow, sometimes spotted with reddish 



brown on the lobes and throat 10. M. primuloides. 



10. Plants annual, caulescent, glandular-puberulent : stems commonly 



much-branched from the base, with well-developed internodes; 



leaf blades lanceolate, oblanceolate, or narrowly oblong; corolla 



5 to 10 mm. long (11). 



11. Stems up to 7 cm. long; leaves crowded, nearly as long as to much 



longer than the internodes; pedicels 3 to 9 mm. long; calyx 



teeth not ciliate; corolla yellow: stigma lobes unequal. 



11. M. SUKSDORFII. 



11. Stems up to 20 cm. long; leaves not crowded, much shorter than 



the internodes; pedicels 6 to 20 mm. long; calyx teeth 



usually ciliate; corolla yellow, or with a pink limb; stigma 



lobes equal 12. M. rubellus. 



1. Mimulus eastwoodiae Rvdb., Torrev Bot. Club Bui. 40: 483. 



1913. 



Navajo Indian Reservation (Apache and Navajo Counties), 6,000 

 to 7,000 feet, wet caves and recesses in rock walls. Southeastern Utah 

 and northeastern Arizona. 



Insufficiently known, perhaps only a variety of M. cardinalis. 



2. Mimulus cardinalis Dougl. ex Benth., Scroph. Indie. 28. 1835. 

 Grand Canyon (Coconino County) and Mohave County, south to 



Cochise and Pima Counties, 1,800 to 8,000 feet, along streams usually 

 in shade, April to October. Utah to Oregon, south to northwestern 

 Mexico. 



Crimson monkeyflower. The large bright orange-red or scarlet 

 flowers are very conspicuous. The var. verbenaceus (Greene) Kearney 

 and Peebles (M. verbenaceus Greene) with the corolla tube nearly twice 

 as long as the calyx (only moderately exserted in the typical form) 

 occupies the same range as the latter in Arizona and is about equally 

 common. A vellow-flowered specimen was collected near Lake Mead. 

 Mohave County (Clover 4273). 



