554 ORDEB 89. -LABIATE. 



middle pairs largest, acute or obtusish. Floral leaves entire, small. Flowers few, 

 pale blue, 4'' long. May Jl. 



9 S. parvula MX. St. simple or branching at base, square, puberulent ; Ivs. ob- 

 long-ovate, obtuse, entire, sessile; fls. small (3") axillary, opposite. Pastures, Mid. 

 and W. States. Plant 3 to 6' high. Boot generally with tuberous mternodes, 

 and fibrous at each joint. Lvs. 3 to 6" long, \ as wide, lower 3" diam. Fls. 

 rather numerous, longer (4") than the leaves, blue. Jn. 



10 S. galericulata L. COMMON SCULL-CAP. St. erect, simple, or branched ; Ivs. 

 lanceolate-cordate, remotely crenate-serrate ; fls. axillary, solitary, large (!' long). 

 2( Meadows and ditches, Can. to Penn. Abundant The whole plant glabrous. 

 Stem square, 12 18' high. . Leaves truncate-cordate at base and acutish at apex, 

 scarcely petiolate, !' by '. Flowers much larger than the preceding, rarely 

 more than 1 from the same axil, with a vizor-like calyx like that -of the other 

 species. Cor. an inch in length, blue. Aug. 



11 S. lateriflora L. MAD-DOG SKULL-CAP. St. branching, nearly glabrous ; Ivs. 

 ovate-lanceolate, acuminate, serrate, petiolate ; rac. lateral, axillary, leafy. 

 Meadows and ditches, lat 38 to Arc. Am. St. square, 1 to 2f high, very branch- 

 ing. Lvs. opposite, rounded at base, acuminate or acute, coarsely serrate, on 

 petioles an inch in length. Rac. opposite, axillary, somewhat 1 -sided; on long 

 stalks, with small blue fls. and small Ivs. Jl., Aug. The English name is due 

 to the singular form of the calyx, which after flowering, closes upon the seeds like 

 a cap or vizor. 



30. MACBRFDEA, Ell. (Dedicated by Elliott to Dr. Wm. Macbride, 

 of Charleston.) Calyx campanulate, 3-lobed, upper lobe oblong, nar- 

 row, lower, rounded ; corolla tube long-exserted, throat inflated, upper 

 lip erect, entire, lower short, spreading, the middle lobe rounded, broad- 

 est ; stamens ascending under the upper lip, anthers approximate by 

 pairs. 71 Glabrous. Verticils 6-flowered, subterminal, bractless. 



M. piilchra Ell. Swamps, middle districts, N. Car. to Ga. St. obtusely 4-angled, 

 1 to 2f high. Lvs. oblong-elliptical, petiolate, obscurely serrate or sinuate, the 

 floral short, sessile, ovate-entire. Verticils 1 or 2. Cal. green, thin, veiny, 6" 

 long, cor. 18", streaked with bright purple and white. Aug., Sept. 



31. SYNAN'DRA, Nutt. (Fig. 86, 325.) (Gr. ovv, together, av6pe$ 

 in allusion to the coherence of the anthers.) Calyx 4-cleft, segments 

 unequal, subulate, converging to one side ; upper lip of corolla entire, 

 vaulted, the lower obtusely and unequally 3-lobed ; throat inflated ; 

 stamens ascending beneath the galea, upper pair of anthers cohering, 

 having the contiguous cells empty. Fls. solitary, axillary, somewhat 

 spicate above. 



S. grandiflora Nutt. St. subsimple, nearly smooth, subterete ; Ivs. cordate-ovate, 

 acuminate, obtusely dentate, often dilated at base, petiolate, the floral sessile ; fls. 

 solitary, sessile ; caL segm. ovate, setaceously acuminate, two upper larger than 

 the two lower ; cor. tube somewhat funnel-form, mouth much inflated. Woods, 

 Cleveland, Ohio, to Tenn. St. 6 to 18' high. Lvs. 1 to 2' long, nearly as wide, 

 petioles 1 to 3'. Cor. 1' long, upper lip very large, rounded, white, lower lip 

 striated with purple lines. Jn. 



32. PHYSOSTE X GIA, Benth. LION'S-HEART. (Gr. <j>vaa, a bladder, 

 and OTsyri, a covering ; from the inflated corollas.) Calyx campanulate, 

 subequally 5-toothed ; corolla tube much exserted, throat inflated, upper 

 lip concave, middle division of lower lip largest, roundish, emarginate ; 

 stamens 4, unconnected, ascending beneath the under lip, the two lower 

 rather longer. H. Fls. opposite, in a terminal, bracteate, 4-sided spike. 

 P. Virginiana Benth. Cal. in fruit ovate, inflated ; cor. gaping, upper lip con- 

 cave. A beautiful plant, native hi Penn., S. and W. States, often in gardens. 

 It varies much in stature, is very smooth, dark-green. St. square, thick, rigid, 1 



