173 
antherae 0:5-0-6 mm. longae. Drupa subglobosa, circiter 
5 mm. diametro, stylo persistente 1 mm. longo coronata. 
Pyrenae compresso-ellipsoideae, 4-5 mm. longae, 3 mm. crassae. 
—R. tomeniellus Seem. Bot. Herald, 275 ied non Benth. 
R. californicus Hemsl. Biol. 197 (1880), non Eschse 
Sierra Madre, Seemann 2155 (type in Herb. aa 
-Rhamnus Gonzalezii Riley, sp. nov.; affinis R. spinoso Hemsl. 
foliis minoribus pro rata aieptieliciitita vpn Po dee 
pedicellis brevibus robustis hirsutissimis distin 
Rami et ramuli rigidi, leviter flexuosi, sulcati, date lenticellati, 
cinerei, ferrugineo-hirsuti, tandem glabrati; rami 30 cm. infra 
apices 3-5 mm. diametientes; ramuli patuli, 7-10 cm. longi. 
Folia alterna, petiolata, elliptica vel rhomboideo-elliptica, apice 
emarginata, longe mucronata, 3-4-5 em. longa, 1-5-2-5 cm. lata 
(rarius ad 7 cm. longa et 3-5 cm. lata), integra, supra opaca, 
glabrata, subtus costa nervisque hirsutis ceterum sparse hirsuta 
vel glabrescentia; petioli 5-7 mm. longi, ferrugineo-hirsuti; 
stipulae spinescentes, circiter 4 mm. longae, glabrescentes.’ 
Flores in axillis fasciculati, pedicellis robustis 2-3 mm. longis. 
dense ferrugineo-hirsutis, pilis ascendentibus. Calycis tubus 
0-75 mm. longus, hirsutissimus; lobi ovato-triangulares, obtusi, 
1-25 mm. longi, basi 1 mm. lati, glabrescentes. Petala cucullata, 
breviter unguiculata, 1 mm. longa, glabra. Filamenta 1 mm. 
longa, ad basin sensim dilatata, glabra. Stylus 1 mm. longus, 
trifidus, glaber. Fructus non visus. 
Sinaloa: San Ignacio; Cerro de la Nanche, San Agustin, 
205 m. Gonzalez 628 (type in Herb. Kew en 
Vernacular name “ Aleznillo.”’ 
Ceanothus buxifolius Willd. ex Roem. et Schultes, Syst. v. 300; 
H.B.K. Nov. Gen. vii. 62, t. 615; SBH. 276; Hemsl. Biol. i. 199. 
(excl. Parry et Palmer 122). 
Sierra Madre, in forests, Seemann 2158. 
C. caeruleus Lag. Gen. et Sp. 11 (1816); Lodd. Bot. Cab. t. 110; 
Roem. et Schultes, Syst. v. 298; H.B.K. Nov. Gen. 
vii. 63; Hemsl., Biol. i. 199-—C. azureus Desf. Tabl. ed. 2, 232 
(1815), nomen nudum ; J. B. Ker, Bot. Reg. iv. t. 291 (1818), 
deser.; DC Prodr. ii. 31; Brongn. Mem. Rhamn. 77, t. 4, fig. 4 
( Se. Nat. x. 384, t. 15, fig. 4; 1827); SBH. 276; Hemsl. 
Biol. i. 199. ©. bicolor Willd. ex Roem. et Schultes, Syst. vy. 300: 
1819 
: Skid Madre, Seemann 2157, and without number. 
The earliest name proposed for the species was C. azureus 
Desf., which was published as a “nomen nudum ” in 1815, and 
was not validated by description until 1818. As the name 
C. caeruleus Lag. was published with a description in 1816, it 
should be adopted under International Rules. 
Rose treats Pringle 11395 (Federal District, near Eslava) 
and Bourgeau 994 (San Nicolas) as a new species, C. Candolleanus 
to which he refers C. azureus DC. as a synonym sisi US. 
