STANDLEY TREES AND SHRUBS OF MEXICO. 507 



Some of the Asiatic and South American species yield part of the rosewood 

 of commerce. 



Leaflet 1 1. A. brownii. 



Leaflets 5 or more. 



Leaflets glabrous beneath 2. A. granadillo. 



Leaflets thinly sericeous beneath. 



Leaflets 1.5 to 3 cm. long 3. A. glabrum. 



Leaflets 3.5 to 5 cm. long 4. A. g-lomeratum, 



1. Amerimnon brownii Jacq. Enura. PI. Carib. 27. 1760. 



Dalbergia amerimnnm Benth. Journ. Linn. Soc. Bot. 4: Suppl. 36. 1860. 



Dalbergia brotvmi Urban, Symb. xVntill. 4: 295. 1905. 



Taraaulipas, Veracruz, and Oaxaca. Central America, West Indies, and 

 South America. 



Shrub, 3 to 4.5 meters high, often with long reclining branches ; leaves ovate 

 or oval, 3.5 to 7 cm. long, obtuse or acute, lustrous, glabrous ; flowers white, 

 in dense clusters. " P§ndola " (Cuba). 



2. Amerimnon granadillo Standi., sp. nov. 



Oaxaca to Michoacan ; type from El Tibor, ISIichoacan or Guerrero, altitude 

 100 meters {Lanfflass^ 294; U. S. Nat. Herb. no. 385583). 



Tree, the branchlets slender, glabrous ; leaves glabrous, the rachis 9.5 to IS 

 cm. long, slender, glaucescent, the petiolules 2.5 to 3 mm. long; leaflets 7 to 11, 

 elliptic-oval or ovate-oval, 3 to 7 cm. long, 1.7 to 4 cm. wide, rounded at base, 

 obtuse or rounded-obtuse at apex, sometimes with a somewhat abrupt obtuse 

 tip, thin, bright green and lustrous on the upper surface, paler beneath, the 

 venation prominent and reticulate on both surfaces ; cymes lax, few-flowered, 

 the pedicels in fruit 4 to 5 mm. long, very stout ; calyx persistent in fruit, thinly 

 sericeous with short brown hairs, the lobes obtuse ; fruit very flat and thin, 1 

 to 3-seeded, 8 to 15 cm. long, 1.7 to 2 cm. wide, sometimes slightly constricted in 

 the middle, acuminate at apex, attenuate at base, lustrous, glabrous, reticulate- 

 veined, the slender stipe 10 to 12 mm. long. 



Collected also at Apango (Cerro Huatulco), Oaxaca, altitude 400 meters, Octo- 

 ber 10, 1917, by B. P. Reko (no. 3.517). 



Related to Dalbergia retnsa Hemsl., a species of Panama, which is distin- 

 guished by the sericeous lower surface of the leaflets and broader, shorter fruit. 



Amerimnon granadillo is a well-known forest tree of the west coast of Mexico, 

 and there are several references to it in literature under the vernacular name of 

 " granadillo." It is highly valued for use in cabinet work. A specimen of the 

 wood has been forwarded by Dr. Reko. It is very heavy and hard, of a beautiful 

 .purple color, with broad stripes of purplish black ; it takes a fine polish. 



3. Amerimnon g-labrum (Mill.) Standi. 



Robinia- glabra, Mill. Gard. Diet. ed. 8. Robinia. no. 5. 1768. 



Dalbergia campeachiana Benth. Journ. Linn. Soc. Bot. 4: Suppl. 37. 1860. 



Amerimnon campcachianum Kuntze, Rev. Gen. PI. 1:1.59. 1891. 



Dalbergia ptirpusii T. S. Brandeg. Univ. Calif. Publ. Bot. 6: 501. 1919. 



Veracruz, Morelos, and Oaxaca to Yucatan ; type from Campeche. 



Scandent shrub ; leaflets about 9, oval, rounded at the apex, paler beneath ; 

 flowers small, white, in loose clusters ; fruit 4 to 6 em. long, 1 to 1.5 cm. wide, 

 thin. " Cibix " (Yucatan, Maya); " bejuco de panune," " bejuco de estribo " 

 (Oaxaca). 



4. Amerimnon glomeratum (Hemsl.) Standi. 

 Dalbergia glomerata Hemsl. Diag. Pi. Mex. 8. 1878. 



Known only from the type locality. Sierra Zongolica, Veracruz. 



