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26 PROCEEDINGS OF THE AMERICAN ACADEMY. 
pallidioribus 3-6 cm. longis 2.4-3.6 cm. latis basi cordatis ; petiolis 
4~10 mm. longis ; inflorescentia terminali ca. 1.5 dm. longa interrupte 
spiciformi, verticellastris inferne subremotis superne approximatis densis 
multifloris, cymulis brevibus densissimis, bracteis inferioribus foliaceis 
ovatis vel ovato-lanceolatis 2-2.5 cm. longis petiolatis superioribus . 
lanceolatis vel linearibus ; pedicellis brevissimis purpureis griseo- 
puberulis, calyce subcylindrato anthesi 1 cm. longo puberulo inferne 
viridi superne laete purpureo vel violaceo, dentibus argutissimis 
lineari-lanceolatis ca. 3 mm. longis maturitate subinduratis saepe cur- 
vatis plus minusve patentibus ; corolla purpurea gracili griseo-puberula 
apicem versus deorsum curvata 2 cm. longa, labiis brevibus superiore 
subgaleato ; staminibus breviter exsertis. — Alvarez, San Luis Potosi, 
Mexico, 5-10 September, 1902, Dr. Edward Palmer, no. 53 (type, in 
hb. Gray), distributed as Cedronella mexicana Benth. Previous col- 
lections of what appears to be the same species have been made as 
follows : Mexico, without precise locality, Sumichrast (hb. Gray), Coul- 
ter, no. 1078 (hb. Gray) ; in mountains near Morales in valley of San 
Luis Potosi, 1876, Schaffner, no. 682 (hb. Gray); region of San Luis 
Potosi, 1878, Parry & Palmer, no. 762 (hb. Gray). This species 
differs clearly from 2B. mexicanum (HBK.) Brig. in its deltoid-ovate 
“leaves, shorter cordlla, ete. It appears to differ in the same respects - 
from B. coccineum (Greene) Briq., known to the writer from descrip- 
tion, —a characterization which fails to convince the reader that 
B. coccineum is distinct from the real B. mexicanum. B. Palmeri 
differs from B. betonicvides (Lindl.) Briq. in its much shorter petioles, 
longer calyx-teeth, ete. : 
genus Brittonastrum now generally accepted necessitates the transfer 
of Dr. Greenman’s excellent species C. Wrightii. 
Russelia Pringlei Robinson, n. sp., caulibus subsimplicibus 1 m. 
oppositis vel ternis ; verticellis 3-5 om. distantibus 
formibus griseo-pubescentibus 3-4 mm. longis ; calycis 5 mm. longi 
lobis ovato-lanceolatis caudato-acuminatis dorso squamiferis ; corolla 
