STUDIES IN CEANOTHUS. 1 79 



§ Eiiceanothtis. 



Leaves alternate, tiormally ^-nerved, nearly always inore 

 or less glandular on the margins. Stipules slender, cadu- 

 cous. Peduncles elongated, usually compound, often inore 

 or less leafy. Fruit more or less resinous, smootli, warty 

 or crested. Fruiting pedicels slender. Calyx usually 

 rather small. 



A. Leaves caducous. Flotuers ordinarily zvhite. 



1. Ceanothus Americanus L. Ctrinervusyio^nch., 

 Meth. 651 (1794) ; C. herbaceus Raf. Med. Repos. v. 360 

 (1808) ; C. tard?yior us Hornem. Hort. Hafn. i, 230(1813); 

 C. intermedius & perennis Pursh, Flor.-Am. Sept. i, 167 

 (1814); C. macrophyllus Desf. Tabl. ed. ii, 232 (1815); 

 C. ovalifolius Wender in Schr. Naturf. Ges. Marb. ii, 247 

 (1830) [?]; C. officinalis^?^. Med. Fl. ii, 205 (1830); 

 C . glomeratus, latifolius, ellipticus & virgatus Rafn. New 

 Flora, part iii, pp. 54-57 (1836); C. Pitcheri Pickering 

 Mss. ex. T. & G. Fl. i, 264 (1838); C. decumbens, mac- 

 rocarpus & reclinatus Hort. ex. Steud. Nom. ed. 2, i, 313 

 (1840) ; C. procumbcns hybridus & Dilleniantts Hort. ex. 

 C. Koch, Dendrol. i, 619-20 (1869). 



Ceanothus Americanus, L. sp. 195. "Foliis ovatis acuininatis serratis 

 trinerviis subtus piabescentibus, thyrsis elongatis, rachi pubescente. \^ . 

 in America bor. Mill. ic. t. 57. Sims. bot. mag. t. 1479. Flores ut iu se- 

 qneutibus albi. Frnctus obtuse trigonus." — DC. Protl. ii, 31. 



2. Ceanothus ovatus Desf. C. ovalis Bigel. Fl. 

 Bost. ed. ii, 92 (1824); C. glandulosus "my Forrestia 

 thyrsoides of 1809" Raf. New Flora, iii, 57 (1836); 

 C. mollissimus Torr. Fremont's First Rep., 88 (1843), 

 name only. 



Ceanothus OVATUS Desf. "3. Ceauothiis a feuilles ovales. Ceanothus 

 ovatus. C. foliis ovatis, deutato-creuatis, glabris; fructn bexagouo. Amer. 

 sept. D." Desfontaiues, Histoire des Arbres et Arbrisseaux, vol. ii. p. 381. 

 (1809.) 



