408 XCI. SCROPHULARIACEiE, Dasystoma, 



2. G. MAHiTiMA. Raf. Marsh Gerarclia. 



St. angular ; Ivs. linear, fleshy, short, rather obtuse ; /s. stalked ; cat. 

 truncate ; it-pfer segments of the corolla fringed. — Native of salt marshes^ 

 Mass. to N. J., also shores of L. Mich. Houghton. This species resembles the 

 foregoing, of which Pursh describes it as a variety. It is a smaller plant 6 — 

 12' in height, and with smaller flowers. The leaves are shorter and thicker. 

 The calyx segments are cut square off, not acute as in the preceding. Corolla 

 purple. Flower-stalks axillary and terminal. July — Sept. 



3. G. TENUiFOLiA. Vahl. SmalUJlowered Purple Gcrardia. 

 Branching ; Ivs. linear ; ped. axillary, longer than the flowers ; cal. teeth 



short, acute. — (i) A slender and delicate species, usually very branching, but 

 often simple, in fields and woods, U. S. Stem 6 — 12' high. Leaves about an 

 inch long, very narrow (scarcely a line in width), entire, rough, obtuse, often 

 coiled. Flowers opposite, axillary, on slender stalks an inch or more in length. 

 Corolla purple, spotted within, the border much spreading, smooth and nearly 

 equal. Calyx teeth short and acute. Aug. Sept. 



4. G. ASPERA. Doug. Ro^ogh Gcrardia. 



St. a little branched ; Ivs. long and narrowly linear, floral ones exceeding 

 the calyces ; ped. twice longer than the calyx ; calyx teeth lanceolate, acute, about 

 as long as the tube; cor. glabrous. — (j) Illinois, Buckley in DC, Prod. x. 518. 

 Peduncles sometimes but little exceeding the calyx, sometimes twice as long. 

 Flowers as large as those of G. purpurea, to which species this is perhaps too 

 nearly allied. 



5; G. SETACEA. Walt. 



Branches slender, roughish; Ivs. setaceous, roughish; Jls. few; ped. alter- 

 nate and opposite, very long ; cal. teeth short and setaceous ; caps, ovale, larger 

 than the calyx. — ® Penn. 1 to Car. Nuttall? Scarcely darkens in drying. 

 6. G. Skinneriana. Wood. (G. aphylla. Benth. in part, not Nutt.) 

 Scabrous, pale green; st. erect, sparingly branched, slender, 4 angles mar- 

 gined ; Ivs. remote, linear, acute at each end, the floral ones 2 or 3 times shorter 

 than the very long peduncles; c«?. tec//^ very short, glandular- acute; cor. infun- 

 dibuliform-campanulate, lobes short, spreading; caps, roundish-ovoid, scarcely 

 exceeding the calyx. — Barrens, la. ! Plant 12 — 18' high, the stem and few 

 branches quite slender and rough on the slightly winged angles. Leaves (8 — 12'' 

 by i — I") much shorter than the internodes, margin slightly revolute. Pedun- 

 cles 1 — IJ' long, erect. Corolla (5 — 6") glabrous, light purple or rose-color» 

 Capsule loculicidal, about 30-seeded. Jl. Aug. 



Obs. — I detected this delicate species in July, 1846, in Greene Co., la., on land belonging to Dr. A. G. 

 Skinner, whose zeal in botanical pursuits deserves more than this slight notice. It does not turn black in 

 drying. 



23. OTOPHYLLA. Benth, 



Gr, ovs (oros), ear, (jjvWov, leaf; alluding to the auriculate leaves. 



Calyx deeply 5-partecl, sepals leafy, unet^ual ; cor. tube enlarged 

 upwards, lobes broad, entire ; sta. didynamous, tlie upper pair with 

 smaller abortive anthers ! caps, subglobose, many-seeded. — Erect, hairy 

 herbs with opposite leaves. I'^ls. axillary., solitary, subsessile. 



O. MicHAuxii. Benth. (Gcrardia auriculata. Michx.) Michaux's Gerardia. 



Scabrous-hirsute, subsimple ; lis. ovate-lanceolate, lower entire, upper 

 mostly auriculate-lobed ; Jls. sessile. — Penn. to 111., Rev. E. Jenny 1 in prai- 

 ries and low grounds. A rough, rigid plant, 9 — 18' high. Leaves (1- U' by 

 I — I') entire on the margin, sessile; floral ones with an oblong-lanceolate lobe 

 each side at base. .Flowers alternate or mostly opposite, calyx deeply cleft, 

 corolla purple or rarely white, pubescent, dilated at the mouth, 9 — 12" long. 

 Aug. Sept. 



24. DASYSTOMA. Raf. 



Gr. iacrv;, hairj', arojta, mouth ; alluding to the character of the corolla. 



Calyx campanulate, half -'S-cleft, imbricate in aestivation ; cor. tub* 



