6TANDLt:v — THKKS AKD SHRUBS OF MLXICO ]339 



^•orolla tiif)e c'.odgate, Ktraight or Blightly curved, slightly ampliatc above, the 

 limh nearly regular or bilabiate, the posterior lip entire or bilobate, the anterior 

 one 3-partefl; KtameiiK 2; ovules 2 in each cell. 

 f Jorolht limb conspicuouKly bilabiate, the lobes 5 to 8 inui. long. 



1. O. callistachyunx. 

 Corolla limb nearly regular, the lobes usually shorter. 



Leaves pubescent on both surfaces; inflorescence leafy-bracted. 



2, O. foliaceo-bracteatum. 

 Leaves glabrous or nearly so; inflorescence not leafy-bracted. 



Inflorescence racemose, puberulent; leaves puberulent beneath along the 



costa , 3. O. cuspidatum. 



Inflorescence thyrsoid-paniculate, glabrous; leaves glabrous. 



4. O. glabrum. 



1. Odontoneraa calliBtachyum (Schlecht. & Cham.) Kuntze, Rev. (jan. PI. 2: 



494. 1891. 



Juslicia callintacliya Sclilecht. & Chanj. Linnaea 6; 370. 1831. 



Thyrsacanlhus callislachyuH Nees in DC. Prodr. 11: 320. 1847. 



Thyraacanthua lilucinuH Lijull. Journ. Hort. Soc. Lond. 6: 159. 18.01. 



Veracruz, Pucbia, Oaxaca, and Chiapas; type from Misantla, Veracruz* 

 Central America. 



Plants suffrutesccnt, 2 to 4.-0 meters high; leaves lance-oblong to elliptic-ovate, 

 10 U) 30 cm. long, acuminate, glabrous or nearly so, the upper ones usually sessile 

 but the lower petiolate; flowers red or pink, in dense or interrupted, racemiform, 

 often paniculate thyrses, the branches pubescent or glabrous; corolla 2.5 to 3 cm. 

 long, llie throat 5 mm. broad. 



2. Odontonfema foliaceo-bracteatum (Oerst.) Kuntze. Rev. Gen. PI. 2: 4!il. 



1891. 

 ThyrHacaiilhuH foliaccu-bradealus Oerst. Nat. For. Kj<ibenhavn. Vid. Medd, 



1854: 14(). 1855, 

 'lyi^o from Mirador, Veracruz. 



Stems villous; leaves oblong or ovate-oblong, about 13 cm. long, short-acumi- 

 nate, attenuate at base to a short petiole; flowers sessile; calyx lobes linear. 



Known to the writer only from the original description. The plant was 

 n;ferred doubtfully to ThyrHacanlhm by Oersted and may belong to some other 

 genuM. 



3. Odontonema cuspidatum (Xees; Kuntze, Rev. Gen. PI. 2: 494. 1891. 

 Tliyibactintlinn riiN/nilaiuH Xees in DC. Prodr. 11: 323. 1847. 



Chiapas an<i Tabasctj; reijorted from Oaxaca; type fronj Teapa, Tabasco. 

 Leaves oval to ellii>tic-oblong, about 25 cm. long, acuminate, acute at base, 

 petiolate, glabrous above; corolla 2.5 cm. long. 



ThyrnardnthitH tilridiiM Nees,' of GuatemaUi and El Salvador, is scarcely distinct. 



4. Odontonema glabrum T. S. Brandeg. Univ. Calif. Publ. Dot. 6: 195. 1915. 

 ChiapaH; type fnjm Fiiica Irlanda. 



Plantis Hu(Friitesc(Mit, glabnMis throughout; leaves sliorl-pcUcjlate, lance-oblong 

 to obloug-(!lliptic, 10 to 20 cm. long, long-acuminate, acute at base; corolla 2.5 

 cm. long. 



10. CARLO WRIOHTIA A. Gray, Proc. Amer. Aca.l. 13: 304. 1877. 

 Plants suffrutesccnt or herbaceous; leaves entire; flowers small, loosely spicate 

 or racemose, often paniculate; calyx 5-parted or 5-clcft; corolla tube slender, the 

 throat not dilated, the limb nearly ccjually 4-cleft; stamens 2, the anther cells 

 equal, inserted at the same height; capsule stipitate, 4-seeded. 



'In DC. Prodr. 11: 324. 1847. 



