G20 PROCEEDINGS OF THE AMERICAN ACADEMY. 



deflexis puberulis ; capitulis minimis primo erectis 3-3.5 mm. diainetro, 

 involucri squamis exterioribus 3-4 ovatis herbaceis acuminatis maturi- 

 tate late paten tibus 2.5 mm. longis ; disco valde convexo, receptaculo col- 

 umnari ; flosculis 9 3-5, ligulis minimis flavis ca. 1 mm. longis ; fructu 

 (achaenio in squama involucri interioris involuto) obovato compresso 

 apice dentibus 2 parvis rectis conicis instructo quorum uno antico 

 altero postico, faciebus lateralibus fructus utrinque cum cavulis 2 

 parvis profundis insignibus, facie postica rotundata vix carinata in- 

 conspicue tuberculato-scabrido. — Clayey soil, on prairies, El Calabazal, 

 Michoacan or Guerrero, Mexico, alt. 300 m., 20 October, 1898, E. Lan- 

 glade, no. 482 (type, in hb. Gray). A species related perhaps most 

 nearly to M. microcephalum Less., which, however, is described as having 

 leaves sessile by a much narrowed base. There is nothing furthermore 

 in Lessing's description of the achene to suggest that he had before 

 him the peculiar fruit of the present species. 



Melampodium tepicense, n. sp., gracile parvum annuum basi 

 decumbens plus minusve repens deinde erectum 5-9 cm. altum dicho- 

 tomo-ramosum ; caule tenui bifariam puberulo folioso ; foliis ovatis vel 

 rhomboideis obtusis vel obtusiusculis paucidentatis basi cuneatis 3- 

 nerviis supra viridibus sparse pilosis subtus paulo pallidioribus 

 praecipue marginem versus hirsutulis 10-14 mm. longis 4-7 mm. latis, 

 petiolo 3 mm. longo gracili angustissime alato ; capitulis parvis 3 mm. 

 diametro inconspicuis in dichotomis breviter pedicellatis, pedicellis ca. 

 1 mm. longis 1-capituliferis ; involucro exteriori 5-partito, lobis obova- 

 tis obtusis 2.5-3 mm. longis 3-5-nerviis ciliatis viridibus; receptaculo 

 parvo conico ; flosculis liguliferis 5, ligulis ovato-oblongis cucullatis 

 viridescentibus 3-nerviis 1.8 mm. longis apice 2-dentatis, fructu (i. e. 

 achaenio in bractea involuto) compresso semiobovato dorso tuberculato 

 apice ecupulato exappendiculato ; flosculis disci ca. 5. — Tepic, Mex- 

 ico, 5 January to 6 February, 1892, Dr. Edward Palmer, no. 1814 (type, 

 in hb. Gray ) . This species should stand nearest to M. arvense Robinson, 

 but it is readily distinguished from that species by its leaf-form, the 

 shape of the rhombic-ovate bracts, the more numerous ray-flowers, etc. 



Jaegeria glabra (Wats.), n. comb. Sabazia glabra "Wats. Proc. Am. 

 Acad, xxiii. 277 (1888). Jaegeria petiolaris Robinson, Proc. Am. 

 Acad. xxxv. 316 (1900). When this species was transferred some 

 years ago to Jaegeria its specific name was changed owing to the exist- 

 ence of J. hirta, var. glabra Bak. in Mart. Fl. Bras. vi. pt. 3, 167 (1884). 

 According to the Vienna rules, however, the existence of a varietal 

 name in a genus is no obstacle to the use of the same name in the 

 specific category and, therefore, the combination J. glabra is required 

 by priority. 



