Vol. 34, pp. 115-118 June 30, 1921 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



NEW MELIACEAE FROM MEXICO. 

 BY S. F. BLAKE. 



ii/ m 



While engaged in the preparation of a brief synopsis of the 

 Mehaceae of Mexico for Mr. Paul C. Standley's "Trees and 

 Shrubs of Mexico, " I have found several new species of the genus 

 Guarea. A new species of Cedrela has also turned up since the 

 publication of my paper on this genus. ^ As the plan of Mr. 

 Standley's work does not permit of full descriptions, these are 

 given here. 



Cedrela ciliolata Blake, sp. nov. 



Branchlets puberulous; leaves 6- to 10-foliolate; petiole and rachis 

 pilosulous, together 10 to 25 cm. long; petiolules 1 to 1.7 cm. long, opposite 

 or subopposite; blades ovate or oblong-ovate, or the lowest suborbicular- 

 ovate, the larger 9 to 12.5 cm. long, 3.3 to 5 cm. wide, narrowly falcate- 

 attenuate, at base unequal and usually broadly rounded or subcordate, or 

 rarely acute, pergamentaceous, above deep green, somewhat shining, 

 sparsely puberulous along costa or glabrous, ciliolate with whitish hairs, 

 beneath slightly paler or brownish green, spreading-pilosulous or puberu- 

 lous chiefly along costa and the 12 to 16 pairs of lateral veins or glabrescent, 

 somewhat prominulous-reticulate ; panicles puberulous, when young dense, 

 at maturity loose, about 14 cm. long and wide, with spreading or deflexed 

 branches; pedicels 2 to 3 mm. long; calyx 2 mm. long, puberulous, the 5 

 teeth short, deltoid, acutish to obtuse, sometimes apiculate; petals linear- 

 oblong, 6.5 to 7.5 mm. long, obtuse, densely griseous-puberulous outside; 

 stamens 3.8 mm. long, glabrous, the anthers 1.5 mm. long, apiculate; pistil 

 4 mm. long, distinctly exceeding the disk (this 2.5 mm. long), the style ex- 

 ceeding the ovary ; capsule (? obovoid-) ellipsoid, 4 to 4.5 cm. long, fuscous; 

 seeds chestnut, 2.4 cm. long or more. 



Type in the U. S. National Herbarium, No. 1,001,194, collected at Rin- 

 c6n, near Morelia, Michoacan, altitude 1900 meters, June 20, 1909, by 

 G. Arsene (No. 2728). Duplicates from the same locality and collector in 

 1909 (No. 3075) and 1911 (No. 5390). 



.iProc. Biol. Soc. Wash. 33: 107-111. 1920. 



22— Proc. Biol. Soc. Wash., Vol. 34, 1921. (115) 



