116 Proceedings of the Biological Society of Washington. 



This species is close to Cedrela dugedi S. Wats., of Guanajuato, which 

 agrees in its conspicuously ciliolate leaflets, but has much smaller fruit, only 

 2.5 cm. long, and leaflets very acute at base. The vernacular name of C. 

 ciliolata is given by the collector, with a mark of interrogation, as "nogal 

 corriente." 



Guarea chiapensis Blake, sp. nov. 



Branchlets strigillose; leaves 4- or 6-foliolate, the petiole (12 to 22 mm. 

 long) and rachis (2.5 to 12 cm. long) strigillose; petiolules stout, 2 to 4 mm. 

 long; blades opposite, obovate to elliptic or obovate-elliptic, the larger 10 

 to 16.5 cm. long, 4 to 6 cm. wide, obtusely short-pointed, at base cuneate, 

 papery, above deep green, finely puberulous along costa and lateral veins, 

 beneath strigillose along costa and chief veins, the lateral veins 8 to 10 pairs, 

 flat or impressed above, prominent beneath, the secondaries prominulous- 

 reticulate chiefly beneath; panicles axillary, 5 cm. long, strigillose, bifur- 

 cate from base, the lower branches about 1 cm. long, about 5-flowered, the 

 upper very short or suppressed, about 3-flowered; bracts and bractlets very 

 small; pedicels clavate, about 3 mm. long; calyx saucer-shaped, 1 mm. high, 

 strigillose, shallowly 4-toothed, the teeth deltoid, acutish ; petals 4, oblong, 

 5.8 mm. long, valvate, obtuse, densely griseous-strigillose outside; stamens 

 8, the tube 4 mm. long, strigillose outside, shallowly 8-crenate, the linear- 

 oblong anthers 1.3 mm. long; pistil 4.8 mm. long, the gynophore glabrous, 

 very short, the ovary densely strigose, 1.8 mm. long, 4-celled, the ovules 

 solitary, the style sparsely strigose, 2.2 mm. long, the stigma 0.8 mm. wide. 



Type in the U. S. National Herbarium, No. 567,587, collected at Finca 

 Irlanda, Chiapas, June, 1914, by C. A. Purpus (No. 7374). 



This species is related to Guarea donnell-smithii C. DC, which is de- 

 scribed as having a simple racemiform panicle equaling the leaf rachis. 



Guarea excelsa dubia Blake, subsp. nov. 



Similar to the typical form in every character, except that the ovary is 

 sparsely strigose above, and the capsule sparsely strigillose. 



Type in the U. S. National Herbarium, No. 345,974, collected on Maria 

 Madre Island, Tres Marias Islands, Tepic, May 3-25, 1897, by E. W. Nel- 

 son (No. 4230). Also collected at the same place and time by Nelson (No. 

 4222 in part) and F. S. Maltby (No. 43 in part). 



Both Nelson 4222 and Maltby 43 are mixtures of the true Guarea excelsa 

 H. B. K. and G. excelsa dubia. I can discover no difference whatever be- 

 tween them except in the presence or absence of pubescence on the ovary 

 and capsule, but as this is a technical character of considerable importance 

 in the genus it seems advisable to distinguish the pubescent form as a sub- 

 species. Field studies on the constancy of this character are greatly to be 

 desired. I have seen no specimens of G. excelsa showing a pubescent ovary 

 from any other point in its range. 



Guarea heterophylla Blake, sp. nov. 



Branchlets stout, glabrate; leaves 2- to 10-foliolate; petiole (2 cm. long) 

 and rachis (2.5 to 10.5 cm. long) strigillose, glabrate; petiolules 2 to 4 mm., 



