510 PROCEEDINGS OP III i: AMERICAN ACADEMY. 



'i. Racemes longer, Blender: pedicels 2 to 8 mm. long, equalling the calyx. 



56. s . pilipes, Benth. I.e.; I [emsl. 1. c. 556. S. polystachya, var., 

 B nth. PI. Harm. ."hi. nut >'. /Kilystuc/iyOf Ort. Described from Regla. 

 Not seen. 



Bhort, Bimple, solitary, or paniculate, with some remote lower verticals 

 in tin axils of the upper foliar leaves: calyx hispidulous, with short deltoid- 



BubulatG teeth. 



57. S. menthiformis. Tall herb, 6 to 8 dm. high : stems strongly 

 _ular and furrowed, cinereous-puberulent, freely branching: leaves 



<>\;ue or orbicular-ovate, acuminate, round-cordate at base, crenulate- 

 Berrate, 1.5 to 5 cm. long. 1 to 3.5 cm. broad, dark green and glabrate 

 above, pale and minutely puberulent or glabrate beneath, on Blender 

 cinereous-puberulent petioles 1 to 2 cm. long; raceme, excluding the 

 remote axillary verticals, 2 to 5 cm. long; the crowded verticela 6-20- 

 flowered : pedicels barelj 1 nun. long: corolla blue, pilose, 1.2 cm. long; 

 the tube twice exceeding the calyx; the lip hardly equalling the galea: 

 style glabrous or slightly bearded. — ».S. polystachya, Donnell Smith. 

 Enum. PI. Gnat, iv. 12G, not Ort. S. purpurea, Donnell Smith. 1. c. in 

 part, not Cav. — Costa Rica, Cartago, alt. 1.. '><>() in., Oct., iss7 [Juan 

 ./. Cooper in exsicc. J. D. Smith, no. 5902); San Francisco de Guada- 

 lupe, alt. 1,200 m., Jan., 1894 (A. Tonduz, no. 1781); Rio Turrialba, 

 Prov. Cartago, alt. 500 m., March, 1894 (J. D. Smith, no. 4919). 

 Ilabitally resembling forms of Mentha aquatica. 



c. Racemes simple, with no axillary lower verticels. 



1. Raceme Bpiciform, densely flowered, 4 to 10 cm. long: leaves broad-ovate, 1 

 dm. long, 6 dm, wide, on long petioles: corolla white. 



58. S. Cataria, Briq. Ann. Conserv. .laid. Bot. Geneve, ii. 1 12. 

 Described from Costa Rica. No specimen seen. 



2. Raceme elongate, loosely-flowered, at least the lower verticels remote. 



O Leaves broad-ovate, glabrous, coarsely and irregularly serrate: pedicels '-' to 4 



mm. long. 



59. S. BRACHYODONTA, Briq. 1. C. 1 19. S'. iilliijJurii, var. rurndes- 

 cens, day in Wats. Proc. Am. Acad. xxii. 445, in part. — JALISCO, 

 on Bides of cailons, Rio Blanco, Sept., 1886 (Ed to. P>tlmn\ no. 59* i : 

 hillsides near Guadalajara, Sept. 27, 1889 (C. G. PringU^ no. 2468). 

 Placed hv Briquet under the group Cordif<>l!u<\ lVnth., but the leaves 

 are rounded-truncate at base, not cordate, and in habit as well the plant 

 much more resembles members of the I ulgares. 



