568 PROCEEDINGS OF THE AMERICAN ACADEMY. 



et minoribus ; spicis vel racemis gracilibus ; floribus divaricatis ca. 

 2-3 cm. longis; calyce tubuloso vel saepissime infundibuliforrui 1.5- 

 2.5 cm. longo ; galea 5-10 mm. exserta obtusa inferiore labio protuber- 

 anti nunc exserto nunc incluso ; styli superiore parte et stigmate 

 bilamellato exsertis ; capsula oblonga 7 mm. longa apice truncata. — 

 Mart. & Gal. in Bull. Acad. Brux. xii. pt. 2, 30 (1845); Walp. Rep. vi. 

 651 ; Hemsl. Biol. Cent. -Am. Bot. ii. 463 ; Loesen. in Bull. Herb. Boiss. 

 ser. 2, iii. 285. C. anthemidifolia Benth. in DC. Prodr. x. 528 (1846). — 

 Southern Mexico in the states of Oaxaca, Michoacan, Guerrero, Morelos. 

 The type was collected in Oaxaca, Galeotti, no. 995. Oaxaca : Zimat- 

 lan, Sta. Ines del Monte, altitude 2800 m., C. Conzatti, no. 1358 ; 

 Sierra de Clavellinas, altitude 2440 m., C. G. Pringle, no. 5692. 

 Michoacan : Ignatio, C. & E. Seler, no. 1209 ; dry hills near Patzcuaro, 

 C. G. Pringle, no. 3348 ; rock fields near Coru Station, altitude 1830 m., 

 C. G. Pringle, no. 13,142. Guerrero: between Tlapaand Ayusinapa, 

 altitude 1372-1740 m., K W. Nelson, no. 2106. Morelos : thin soil 

 of the knobs of the Sierra de Tepoxtlan, altitude 2287 m., C. G. 

 Pringle, no. 9123. 



2. C. aurea Robinson & Greenman, glabra supra puberula 3 dm. 

 alta graciliter ramosa ; laciniis pinnatisectis 2.5-4 cm. longis ; laciniis 

 6-9 lineari-filiformibus ; floribus 2-2.5 cm. longis subsecundis in race- 

 mis, pedicellis 2-10 mm. longis rectis, saepe in fructu divaricatis ; galea 

 obtusa exserta 8 mm. ; labio inferiore saepissime exserto ; capsula ob- 

 longo-acuminata ca. 6 mm. longa. — Proc. Am. Acad, xxxii. 39 (1896). 

 — Morelos: wet bluffs of barrancas above Cuernavaca, altitude 2135 

 m., C. G. Pringle, no. 6204 (type, in hb. Gray). 



3. C. gracilis Benth., praecedenti similis; floribus 10-15 mm. longis, 

 saepe sessilibus ; galea obtusa 4-6 mm. exserta, calyce non ampliato et 

 viridi-flavo. — Benth. in DC. Prodr. x. 528 (1846) ; Hemsl. 1. c. 460. — 

 Oaxaca : Cerro de San Felipe, altitude 1800 m., Conzatti & Gonzalez, 

 no. 490 ; dry banks in same mountain range, altitude 2287 m., C. G. 

 Pringle, no. 4968. Federal District : lava fields, valley of Mexico, 

 altitude 2287 m., C. G. Pringle, no. 7977. These specimens have not 

 been compared with authenticated ones. 



4. C. macrostigma Robinson, caule basi ramoso et saepe cum ra- 

 ni ulis gracilibus brevibus sterilibus in axillis, puberulenti 1-2 dm. alto ; 

 foliis viridibus, inferioribus subimbricatis, superioribus integris undulatis 

 vel sparse pinnatisectis lineari-lanceolatis 1-4 cm. longis 2-3 mm. latis 

 1-5 nerviis ; floribus flavis 1.5-2 cm. longis ; spicis brevibus demum 

 elongatis ; calyce fisso 4-5 mm., segmentis bidentatis ; corollae galea 

 obtusa ; labio inferiore non protuberanti, laciniis lineari-acuminatis 

 1-5 cm. longis, media breviore ; stigmatibus exsertis, 1-2 mm. longis, 



