92 PROCEEDINGS OP THE AMERICAN ACADEMY. 



RoNDELETiA LEUCOPHYLLA, HBK., var. calycosa. Habit and foliar 

 characters of the species : inflorescence much contracted, subcapitate; 

 bracts 7 to 12 mm. long, 3 mm. or less broad, acute: caljx-lobes sub- 

 equal, subfoliaceous, lance-oblong, 6 to 8 mm. long, 1 to 2 mm. broad, 

 obtuse or obtusish. — Mexico. State of Oaxaca : altitude 1650 m., 

 December, 1900, Conzatti S^ Gonzalez, no. 1127 (hb. Gr.) ; City of 

 Oaxaca, altitude 1550 m., Conzatti, no. 970 (bb. Gr.). No differences 

 other than tjie broader bracts of the inflorescence and the larger sub- 

 foliaceous calyx-lobes are found to distinguish the variety from the 

 species. 



The variety calycosa is cultivated in the Botanical Garden of the City 

 of Oaxaca where it grows as a very graceful and decoi'ative shrub. 



Bouvardia Conzattii. Shrub : stem and branches covered with a 

 grayish bark ; ultimate branchlets smooth and glabrous or minutely 

 puberulent: leaves opposite, ovate to ovate-lanceolate, 1.5 to 4 cm. long, 

 0.5 to 2 cm. broad, obtuse to subacuminate-acute, entire, slightly 

 hirtellous on the margins, yellowish-green and puberulent above, paler 

 and sparingly puberulent on the midrib and obliquely arched conspicu- 

 ous lateral veins beneath, abruptly narrowed at the base into short 

 densely puberulent 2 mm. long petioles ; stipules lanceolate, 3 to 7 mm. 

 long, lacerate-dentate : inflorescence terminating the stem and branches in 

 close rather few-flowered corymbose cymes ; bracts subulate, and as well 

 as the unequal linear-acute 3 to 5 mm. long calyx-lobes, hirtellous-pu- 

 berulent especially along the margins : corolla red or yellowish-red, 13 

 to 15 mm. long ; tube cylindrical, glabrous on the outer surface, bearing 

 within a ring of hairs one-third its length from the base ; lobes short, 

 ovate, acute, about 2 mm. long : stamens included ; filaments adnate to the 

 corolla-tube two-thirds its length from the base ; anthers subsessile : style 

 glabrous : mature fruit not seen. — Mexico. State of Oaxaca : altitude 

 1750 m., July-August, 1900, Conzatti ^ Gonzalez, no. 1076 (hb. Gr.). 



Paederia Pringlei. Stem woody, twining, 6 m. or more in length ; 

 ultimate branches subcompressed, glabrous : leaves opposite, petiolate, 

 ovate or slightly ovate-oblong, 2.5 to 5 cm. long, 2 to 3 cm. broad, usually 

 short-acuminate, acute, at first sparingly pubescent above, later more or 

 less glabrate, hirsute-tomentulose beneath especially along the midrib and 

 lateral nerves : flowers not seen : fruit elliptic-oblong, 10 to 12 mm. long, 

 6 to 8 mm. broad, smooth and glabrous, bearing above the persistent 

 calyx-teeth ; pyrenes separating by, and suspended on a filiform carpo- 

 phore.— Mexico. State of Morelos : lava fields near Yantepec, altitude 

 1385 m., 22 October, 1902, C. G. Pringle, no. 8682 (hb. Gr.). 



