562 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Petiolules 5 to 15 mm. long. 



Sepals obtuse; rachis and both sides of leaflets glabrous. 



5. C. ang'ustifolia. 

 Sepals acute or acutish ; rachis and lower surface of leaflets usually pu- 

 berulous or pilosulous. 

 Leaflets conspicuously ciliolate. 



Capsule 2.5 cm. long; leaflets acute at base 6. C. dugesii. 



Capsule 4 to 4.8 cm. long ; leaflets mostly broadly rounded or sub- 

 cordate at base 7. C. ciliolata. 



Leaflets obscurely or not at all ciliolate. 



Anthers apiculate. Petals 8 mm. long 8. C. mexicana. 



Anthers not apiculate. 



Petals 6 mm. long; filaments glabrous 9. C. odcidentalis. 



Petals 8 to 9 mm. long; filaments sparsely pilose 10. C. yucatana. 



1. Cedrela rotunda Blake. Proc. Biol. Soc. Washington 33: 109. 1920. 

 Known only from the type locality, vicinity of Villa Union, Sinaloa. 

 Leaflets 2 to 4 pairs, 4 to 11 cm. long, 4.5 to 9 cm. wide, papery, glabrescent 



above, densely and softly griseous-pilosulous beneath ; petiolules 3 to 4 mm. 

 long; capsules 2.2 to 2.5 cm. long. 



2. Cedrela discolor Blake, Proc. Biol. Soc. Washington 33: 108. 1920. 

 Known only from the type locality. San Ramon, Durango. 



Leaflets 8 pairs, ovate to oblong or elliptic-oblong, the larger 13 to 17 cm. 

 long, 3.5 to 4.3 cm. wide, shining above ; panicles largo, densely flowered, the 

 flowers subsessile rufidulous-pilosulous. 



3. Cedrela saxatilis Rose, Contr. U. S. Nat. Herb. 8: 314. 1905. 

 Morelos and Oaxaca ; type collected near Cuernavaca, Morelos. 



Tree, 7 meters high ; leaflets 5 to 8 pairs, oblong or ovate-oblong, the larger 

 15 cm. long, 5 to 6.3 cm. wide; panicles large, with spreading or deflexed 

 branches. 



4. Cedrela oaxacensis C. DC. & Rose, Contr. U. S. Nat. Herb. 5 : 190. 1899. 

 Cedrela montana var. mexicana C. DC. in DC. Monogr. Phan. 1: 741, 1878. 

 Oaxaca. 



Small tree; leaflets 6 or 7 pairs, oblong, 5 to 11 cm. long. 3 to 4.3 cm. wide; 

 panicles large, with spreading or deflexed branches ; capsules 3 5 to 4 cm. long. 



5. Cedrela angustifolia DC. Prodr. 1: 624. 1824. 



Mexico, without definite locality. Reported also from Peru, but this record 

 is very doubtful. 



Leaflets 8 to 10 pairs, long-petiolulate, narrowly ovate-oblong, 11.5 cm. long, 

 2.8 cm. wide, glabrous on both sides, acute at base; panicles large; flowers 

 subsessile; calyx teeth obtuse. 



6. Cedrela dugesii S. Wats. Proc. Amer. Acad. 18: 190. 1883. 

 Guanajuato ; type from Guanajuato. 



Large tree; leaflets 3 to 5 pairs, ovate or lance-ovate, the larger 9 to 13.5 

 cm. long, 2.5 to 4.8 cm. wide, caudate-attenuate, sparsely pilosulous or 

 glabrescent and gland-dotted beneath ; petiolules 7 to 15 mm. long ; panicles 

 dense ; corolla 7 mm. long. " Nogal cimarron," " cedro." 



7. Cedrela ciliolata Blake, Proc. Biol. Soc. Washington 34: 115. 1921. 

 Known only from the type locality, Rincon, near Morelia, Michoac:'in. 

 Leaflets 3 to 5 pairs, ovate or oblong-ovate, the larger 9 to 12.5 cm. long, 



3.3 to 5 cm. wide, caudate-acuminate, pilosulous on the veins beneath or 

 glabrescent ; petiolules 9 to 15 mm. long. " Nogal corriente." 



A 



