5SG PROCEEDINGS OF THE AMERICAN ACADEMY. 



Conzatti & Gonzalez, no. 1225; San Juan del Estado, 1920 m. alt., 

 Lucius f : Smith, no. 407. Chihuahua : near Batopilas, E. A. Goldman, 

 no. 195. Duraxgo : vicinity of city, E. Palmer, nos. 114 and 648, coll. 

 of IS 96. Vera Cruz : Orizaba, Botteri, nos. 590 and 431. State of 

 .Mexico: Tacubaya, W. Schumann, no. 1013; near Toluca, G. An- 

 dri'U.r, no. 156 ; Valine de Mexico, E. Bourgeau, no. 104. Guana- 

 juato : Guanajuato, ^4. Duges, no. 388. N. W. Mexico, Seemann : 

 Mexico without locality, Dr. J. Gregg, nos. 434 and 610. 



\J. C xylorrhiza, n. sp., perennis, investa pilis albis crispis simpli- 

 cibus vel basi furcatis ; radice lignea crassa ; caulibus pluribus basi 

 ramosis, supra simplicibus rectis 1.5-2 dm. altis (gracilibus in speci- 

 mine viso sed anni praecedentis caulibus ligneis grandis) ; foliis lan- 

 ceolatis trinerviis 2-3 cm. longis, 2-3 mm. latis, apice acutis, basi 

 obscure auriculatis ; floribus breve pedicellatis divaricatis in spicis bre- 

 vibus confertis, bracteis floribus brevioribus similibus foliis ; calyce 2.5 

 cm. longo, basi ventricoso, laciniis bidentatis ; corolla 3.5 cm. longa, 

 galea exserta 5-15 mm., dorso glandulari-pubescenti ; labio inferiore 

 protuberanti acuminato-tridentato, sinubus inter dentes angustis eras- 

 sis, similibus glandibus ; stylo filiformi exserto, stigmate integro 

 clavato; capsula oblonga, basi et apice acuminata, compressa, 1.5 cm. 

 longa. — Coahuila: Sierra Encaruaciore, 28 July, 1896, E. W. Nelson, 

 no. 3895 (type, in hb. Gray). This species is related to C. tenuijiora, 

 differing in the peculiar pubescence, the habit of growth, and fewer- 

 flowered more capitate spikes. 



43. C. scabridula, n. sp., suffruticosa scabriduli-puberulens ramosa 

 alta ; foliis lineari-lanceolatis apice acutis vel obtusis basi rotundatis 

 vel rarissime auriculatis, trinerviis 2-3 cm. longis, 2-5 mm. latis ; 

 foliis floralibus latioribus et brevioribus ; floribus. breve pedicellatis, 

 junioribus in spicis capitatis, senioribus in racemis ; pedicellis filiformi- 

 bus 3-5 mm. longis ; bracteis supremis attenuatis apice coccineis ; 

 calyce basi obliquo tubuloso 3 cm. longo, in altitudinem postice 6 mm., 

 antice 2 cm. fisso, segmentis acuminato-laciniatis gland ulari-puberu- 

 lentis, superiore parte coccinea, inferiore psittacina ; corollae galea 

 exserta 15 mm., obtusa sed lateraliter emarginata, 2 cm. longa, apice 

 2 mm. lata, basi 5 mm. ; labio inferiore atro-rubro exserto et pro- 

 tuberanti 1 mm., laciniis lineari-acuminatis 1 mm. longis, exterioribus 

 divaricatis, media incurvata, sinubus crassis ; stigmata fere exserto 

 clavato; ovario ovato-acuminato. — Durango: Tejamen, August, 1906, 

 E. Palmer, no. 468 (type, in hb. Gray). Dr. Palmer notes this as 

 one of the showiest of plants, with flowers bright yellow and scarlet. 

 It grows in compact masses on stony hills among other plants, but 

 is not common. The stems are brittle and the plant is not eaten by 



