lombia—in Spruce’s territory, — has resulted in a num- 
ber of interesting additions to our knowledge of the South 
American flora. In the following pages, I have presented 
a miscellany of notes of an ethnobotanical, phytogeo- 
graphical, ecological or historical nature, together with 
the description of a number of new species. 
I acknowledge gratefully the valuable collaboration of 
a number of my colleagues who have determined special 
groups of plants for me: Mr. A. H. G. Alston (Selagi- 
nella); Dr. L. H. Bailey and Dr. H. Emery Moore 
(Palmae); Mr. J. A. Steyermark (Senefelderopsis) ; Dr. 
José Cuatrecasas (7%liaceae and Quararibea); Dr. Bas- 
sett Maguire (Guttiferae); Mr. Joseph Monachino 
(Pouteria); Dr. Lyman B. Smith (Bromeliaceae); and 
Dr. Robert Woodson (A pocynaceae). It is a pleasure to 
express my thanks to the authorities of the Jardin Bo- 
tanico in Madrid for their kind permission for me to 
publish notes on several of the Mutis water-colors of 
Colombian plants which I had the great good fortune 
to examine in some detail in June 1950. I have also to 
thank Mr. Elmer W. Smith and Mrs. Dorothy H. Marsh 
whose appreciated artistry has enlivened and enhanced 
certain of the material herein presented. 
SELAGINELLACEAE 
Selaginella amazonica Spring in Martius F]. Bras. 
1, pt. 2 (1840) 124. 
Alston (in Fedde Repert. 40 (1986) 308) cites six col- 
lections of Selaginella amazonica, all from the Rio Negro 
or its uppermost affuents. Two of the collections cited 
below establish the presence of this species in Colombian 
territory. It is usually a caatinga plant, but can grow in 
dense carpets on rocky and exposed mountain tops, as 
evidenced by Schultes & Lépez 10104. 
[ 33 | 
