be distinguished at once from these and all other species 
by its extraordinary number of stamens. Saurauia 
brachybotrys has about sixty and S. Spraguiana from 
sixty to eighty stamens; Saurauia pruinosa, with one 
hundred and sixty stamens, has the highest number 
among the American species of the genus. Saurauia 
pruinosa may also be distinguished from most other 
American species by the peculiar hoary indumentum 
which has a beautiful rose-pink bloom. 
Saurauia pruinosa appears to be most closely allied to 
S. roseotincta R. E. Schultes of Perti. The latter species, 
like the former, has a very high number (130) of stamens 
and has a beautiful pink-pruinose indumentum on the 
under surface of the leaves. It differs in number of sta- 
mens; in having an inflorescence subequal to (not shorter 
than) the leaves; in having flowers only half as large; and 
in several floral characters. 
Cotomsia: Comisaria del Putumayo, Valley of Sibundoy, Sibundoy. 
Altitude about 2225-2300 m. Moquillo. Flowers excessively narcissus- 
fragrant. Petals white; hairs on sepals pink. Leaf hairs pink, espe- 
cially on young leaves. Leaf backs and young branches a tawny ash- 
brown, giving peculiar characteristic appearance at a distance — the 
two colours of hair. Fruit ripens red. Flower buds large.’’ May 29, 
1946, Richard Evans Schultes & Mardoqueo Villarreal 7651 (Type in 
Herb. Gray). 
Saurauia roseotincta 2. l. Schultes sp. nov. 
Arbor gracilis, quindecim ad viginti pedes alta. Folia 
subcoriacea, elliptica, margine minutissime denticulata, 
apice subacuta, basi cuneata, 21-34 cm. longa, 7-11 cm. 
lata, supra bulbata, nervos versus et sparsiore in lamina 
aspero-setosa, subtus tactu mollia, omnino minutissime 
albo-stellato-pilosa atque in nervis omnibus densius roseo- 
stellato-pilosa; petiolus robustus, usque ad 8.5 cm. lon- 
gus, 4-5 mm. in diametro, grossiuscule rufo-ferrugineo- 
setosus. Inflorescentiae quam folia breviores, usque ad 
20-22 cm. longae, plusminusve viginti-florae, partibus 
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