STANDLEY TREES AND SHRUBS OF MEXICO. 1215 



2. Eriodictyon lanatum (Brand) Abrams, Bot. Gaz. 60: 126. 1915. 

 Eriodictyon californicum subsp. australe var. lanatum Brand in Engl. 



Pflanzenreich IV. 251: 142. 1913. 



Northern Baja California. Southern California; type collected between 

 Campo and Jacumba. 



Shrub, 2 meters high or less ; leaves linear-lanceolate, 4 to 8 cm. long, acute 

 at each end, subrevolute, entire or dentate, white-tomentose beneath ; corolla 

 pale purplish blue or nearly white, 7 to 8 mm. long. 



3. Eriodictyon trichocalyx Heller, Muhlenbergia 1: 108. 1904. 



Northern Baja California. Southern California ; type from San Bernardino 

 Mountains. 



Glutinous shrub, 0.5 to 1.5 meters high ; leaves 5 to 10 cm. long, acute at 

 base and apex, coarsely dentate or sometimes entire, tomentulose beneath ; 

 corolla white, 5 to 6 mm, long. 



4. Eriodictyon angustifolium Nutt. Journ. Acad. Phila. II. 2: 181. 1848. 

 Mountains of Baja California. Arizona, Utah, and Nevada; type from 



Arizona. 



Glutinous shrub, 2 meters high or less; leaves 5 to 10 cm. long, glabrous 

 above, white-tomentose beneath, entire; corolla about 5 mm. long. 



3. CONANTHUS S. Wats, in King, Geol. Expl. 40th Par. 5: 256. 1871. 



Plants usually herbaceous but sometimes suffruticose ; leaves alternate, 

 entire ; flowers solitary or in scorpioid cymes ; calyx 5-parted ; corolla cylindrlc, 

 campanulate, or funnelf orm ; styles 2, free or connate ; ovules numerous. 



Numerous herbaceous species occur in Mexico. 



Styles connate. Leaves linear 1. C. stenophyllus. 



Styles distinct. 



Leaves elliptic or lanceolate , 2. C. sericeus. 



Leaves linear. 



Corolla cylindric, 9 mm. long 3. C. fl^avescens. 



Corolla salverform, 12 mm. long 4. C. purpusii. 



1. Conanthus stenophyllus (A. Gray) Standi. 



Nama stenophyllum A. Gray; Hemsl. Biol. Centr. Amer. Bot. 2: 361. 1882. 



Coahuila, Zacatecas, and San Luis PotosI; type from San Lorenzo de la 

 Laguna, Coahuila. 



Plants 30 cm. high or less, with thick woody branches below, pubescent; 

 leaves 10 to 17 mm. long ; flowers sessile or short-pedicellate, in terminal 

 leafy cymes ; corolla 9 mm. long. 



2. Conanthus sericeus (Willd.) Standi. 



Nama sericeum Willd.; Roem. & Schult. Syst. Veg. 6: 189. 1820. 



Nama longiflorum Choisy, M6m. Soc. Phys. Hist. Nat. Gen&ve 6: 114. 1833. 



San Luis PotosI and Hidalgo. 



Plants tall and slender, erect, the stems whitish-hirsutulous ; leaves 2.5 to 

 4.5 cm. long, acute, whitish-sericeous especially beneath ; corolla 2 to 2.8 cm. 

 long. 



3. Conanthus flavescens (T. S. Brandeg.) Standi. 

 Nama flavescens T. S. Brandeg. Zoe 5: 254. 1908. 

 Coahuila ; type from Parras. 



Plants suffrutescent, 30 cm. high or more, hirsute and glandular-viscid 

 above : leaves 1.5 to 2 cm. long ; sepals linear, 5 to 6 mm. long. 



