J,; u.oiNo- OF THE AMERICAS ACADEMY. 



pallidioribua 3-6 cm. longia 2.4 3.6 cm. latis basi cordatia; petiolia 

 4 10 mm. Longis; infloresoentia terminali ca. L.5 dm. longa interrupte 

 Bpioiformi, verticellastria inferno subremotia Buperne approximates densis 

 multifloris, cymuhs brevibua densissimis, bracteis inferioribus foliaceis 

 ovatia vel ovato laneeolatia 2-2.5 om. longia petiolatia Buperioribua 

 ianceolatia vel Linearibus; pedicellia breviaaimia purpureifl griseo- 

 puberulis, calyce subcylindrato antheai l cm. longo puberulo infeme 

 viridi anperne laete purpureo vel violaceo, dentibua argntiasimia 

 lineari-lanceolati8 ca. :5 umi. longis matoritate aubinduratia aaepe cur- 

 vati> plu8 minu8ve patentibus; corolla purpurea gracili griseo puberula 

 apicem versua deorsum curvata 2 cm. Longa, Labiis brevibua superiore 

 Bubgaleato; Bteminibus breviter exsertis. — Alvarez, San Luis Potoai, 

 Mexico, ■"> 10 September, L902, Dr. Edward Palmer, no. 53 (type, in 

 hb. Gray , di8tributed as Cedronella mexicana Benth. Previous col- 

 lectiona of what appeara to be the same species have been made 

 follows : Mexico, without precise locality, Sumichrast (hb. Gray), Coul- 

 ter, no. 1078 (hb. Gray) ; in mountains near Morales in valley of San 

 Luis Pot08i, L876, Scka.(i)«/\ no. <Js-j (hh. (Tray); region of San Luis 

 Potosi, 1878, Parry & Palmer, qo. 762 (hb. Gray). This Bpeoiea 

 diflFera clearly from />'■ mexicanum (HBK.) Briq. in its deltoid-ovate 

 leavea, Bhorter corolla, etc. It appears to i litter in the same respects 



m /;. coccinewm (Greene) Briq., known to the writer from descrip- 

 1 1 . > t * , — a characterization which fails to convince the reader thai 

 //. coccineum is distinct from the real B. mexicanum. B. Palmeri 

 differs from B. betonicoides (LindL) Briq. in its much shorter petioles, 

 Longer calyx-teeth, etc. 



Brittonastrum Wrightii (Greenman) Robinson, n. comb. Cedro- 

 nella Wrightii Greenman, Proc Am. Acad. xli. 244 (1905). The rep- 

 aration of the American Bimple-leaved Bpecies of Cedronella aa a new 

 genus Brittonastrum n<>w generally accepted necessitates the transfer 

 of l>r. Greenman'a excellent species C. Wrightii. 



Russelia Pringlei Robinson, n. sp., caulibua Bubsimplicibua I m. 

 Vr i ultra Longitudine teretibus ca. s-costatis niveo-tomentoais ; inter 

 Qodiia 5-6 cm. longia ; ramis elongatia gracilibua 4-6-angulati8 griseo- 

 tomentosia; foliia oppositis vel tends inaequalibua Lanceolato-ovatia 

 1.5-2 cm. Longia 6-10 mm. latis acutatis basi Bubcuneatia serrato-den- 

 t;itis Bnpra viridibua crisps puberulia et squamiferis rugosis Bubtua 

 pallidioribua denaiua Bquamiferis et praesertim in venis nerviaque 

 griseo tomentellis; infloresoentia 3-4 dm. Longa 3-4 cm. Lata; cymulis 

 oppositia vel tends; verticellia :;-.". cm. diatantibua ; pedicellia fill- 

 formibua griseo-pubescentibua 3-4 nun. Longis; calycis 5 mm. longi 

 Lobis ovato-lanceolatia caudato-acuminatia dorso Bquamiferis; corolla 



