STUDIES IN CEANOTHUS. I93 



some forms of C . azureus of which it has nearly the fruit. 

 It is SO far as known confined to the islands off the coast 

 of California and is yet insufficiently known. It is com- 

 mon on Santa Catalina Island, where, as Prof. Trelease 

 notes, it was collected by Nuttall, and it is there very 

 rarely arborescent. Mr. Brandegee collected on Santa 

 Rosa Island a perfectly glabrous form of strikingly differ- 

 ent appearance and with much smaller fruit. It was per- 

 haps this form which led Prof. Sargent to refer the plant 

 to C. vchitiniis. While it is too near other species to 

 hold specific rank, it seems best to retain it until further 

 field studies are made, especially of the forms found on 

 Santa Rosa Island. 



14. Ceanothus azureus Desf. C. ccBruleus,] C. 

 hicolor HB.,t C. glandiclostis,^ C. azureus var.? ^par- 



vifolius. II 



Ceanothus azureus, piibescens; foliis ovato-oblongis aciiminatis, scabro- 

 serratis, subtiis ramisque tomentosis, pauicnlis thyrsoideis: partialibus et 

 simplicibi;s brevibus ex fasciculis plurifloris iu peduuculo crasso tomentoso 

 a basi ad apicem dispositis. — Ceauothus azureus. Desfont. tabl. 233; (ed. 

 1816). — Ceauothus caeruleus. Loddiges hotan. Cabinet. 110. — Frutex 



t Ceanothus cceruleus: foliis oblongis subcordatis serratis, subtus tomen- 

 tosis: racemis comijositis pedunculatis. — Habitat in Nova Hispauia. J^ . — 

 Semina missit D. Sesse. — Lagasca. Gen. et Spec. 11 (1816). 



t CeanotMis hicolor Humb. et Bon2)l.; foliis ovali-lanceolatis serratis tri- 

 nerviis subtxis canescenti-tomentosis, pauicnlis terminalibus. Reliqu. 

 Willd. MS.— Roem. & Schultes Syst. v, 300 (1819). 



§ Ceanothus glandtilosus n. sp., ramis glandulosis, foliis oblongis, basi 

 obtiisiusculis, apice acutis, margine subulato-serrulatis, subtus tomen- 

 tosis, supra glabris \ix lineatis subtriplinerviis, racemis compositis pani- 

 culas terminales constituentibus, primum bracteatis; bracteis ovatis fere 

 subulato-acuminatis apice patulis; pedunculis rhachibusque tomentosis. 

 Frutex altus, floribus coeruleis, pr. las Trojes Octobri flor. Schiede leg. — 

 Sine omni dubio a praecedeute \G. azureus] distinguendus. Si ajiices ra- 

 mulorum lateralium florigerorum pyramidis modo iu ramis dispositorum 

 intueris uondum florentes, Salviam jjotius aliamve Labiatam videre cre- 

 2d Ser., Vol. IV. ( 13 ) June 2, 1894. 



