sompantle, by the Chinantee ma-nya, and by the Zapotec 
betutsa-gitse. 
Ormosia isthmensis Standley in Field Mus. Nat. 
Hist. Bot. Ser. 17 (1987) 264. 
Mexico: Oaxaca, District of Juchitlan, Ubero, alt. 30-90 m., June 
1937, Llewelyn Williams 9423; District of Choapam, San Juan Lalana, 
long. 95°45’, lat. 17°25’, alt. 550 m., May 8, 1939, Schultes & Reko 
822; District of Choapam, Santiago Yaveo, long. 95°41’, lat. 17°20/, 
alt. 450 m., May 19389, Reko s.n. (seeds) ; Vera Cruz, Fortufio Coat- 
zacoalcos River, alt. 30-50 m., February-March 1937, Llewelyn Wil- 
liams S926. 
Although it is a very tall and conspicuous tree, often 
attaining a height of 125 feet, Ormosia isthmensis was not 
collected until very recently. It has apparently been col- 
lected only four times. According to the field notes which 
accompany Llewelyn Williams 8926 and 9423, it is rela- 
tively abundant in Ubero and at Fortuho Coatzacoalcos 
River, both of which localities are on the Isthmus of 
Tehuantepec. In the District of Choapam, immediately 
northwest of the Isthmus, however, Ormosia isthmensis 
is ararity, occurring sporadically in the forests. Dr. Reko 
procured seeds of this species from natives in Yaveo, but 
we were unable to discover any trees in this village. In 
the neighboring town of Santiago Choapam, I heard sev- 
eral references to Ormosia isthmensis and to its brilliant 
vermillion seeds but was unable to make a collection of 
the tree from this locality. In Lalana, it is known by the 
Spanish names palo de Salvador and colorin and by the 
Chinanteec name mu-sa, and it is used to some extent for 
its wood. According to Williams’ field notes, the tree 
is used extensively in the Isthmus for ‘*. . . axe-handles, 
railroad ties, house posts and general construction’’ and 
... toa limited extent for canoes’’. 
According to the natives, the flowers of Ormosia isth- 
mensis are borne in profusion in July and August and 
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