berulis, 2 sepalis adaxialibus saepe ad apicem cohaerenti- 
bus, petalarum lamina glabra, ovario marginaliter villoso 
differt. 
The differences separating this variety from the typi- 
cal one are not strikingly obvious, but they are sufficiently 
important to justify recognition. The epithet is intended 
to convey the impression that the new variety is a smaller 
form of Macrolobium microcalyx. The leaflets of this new 
variety are mostly in two or three pairs, and most of the 
leaflets are smaller than those characteristic of the typical 
variety. The under surfaces of the leaflets are glaucous, 
the bracteoles are glabrous on the inner surface and the 
ovary is marginally villose instead of completely villose 
as in the typical variety. 
Cotomsra: Comisaria del Vaupés, Rio Kananari, Cerro Isibukuri. 
Piedra de arenisea. Altitude 250-700 m. October 28, 1951. Richard 
Evans Schultes & Isidoro Cabrera 14456 (Tyrr in N.Y. Bot. Gard.). 
Tachigalia Schultesiana Dwyer sp. nov. 
Arbores magnae; virgae teretes minute velutinae; 
stipulae non visae; foliaad 20 cm. longa; petioli graciles, 
0.2—-0.4 em. lati, dense pubescentes vix canaliculati myr- 
mecodomatio oblongo, ad 4 cm. longo, ad 1.5 cm. lato, 
saepe infra primum foliolorum jugum constructo; rha- 
chides graciles ad 0.15 cm. lati, dense pubescentes; pet- 
ioluli dense pubescentes ad 0.3 cm. longi; foliola 8—10- 
jugata, tenul-coriacea minute puberula supra dense velu- 
tina infra (praecipue in costa venisque) inaequilateraliter 
angusto-oblonga, 2.5-8 cm. longa, 1—2.3 cm. lata, apice 
obtusa ultime distinecte acuminata, costa prominula venis 
principalibus 6-10 supra prominulis subevanescentibus 
infra subprominentibus subrigidis arcuato-ascendentibus, 
marginibus revolutis; inflorescentiae dense velutinae, 
racemis ad 18 em. longis rhachidibus cire. 0.2 cm. in 
medio latis, inferioribus evidenter arcuato-ascendentibus 
[ 152 ] 
