UNITED STATES DEPARTMENT OF AGRICULTURE 
BUREAU OF PLANT INDUSTRY 
WASHINGTON 
DIVI8ION OF 
PLANT EXPLORATION AND INTRODUCTION 
January 1$, 1939 
Dr. Ivan Johnston, 
The Arnold Arboretum, 
Harvard University, 
Jamaica Plain, Mass. 
Dear Doctor Johnston: 
Enclosed is the list of names of the grasses received 
from you some time ago. We are delighted to have these grasses. 
No. 7132 is a species new for North America. I have referred it 
tentatively to Sporobolus phleoides Hack, from Cordoba, Argentina. 
The type of this in the Hackel Herbarium consisted of three pani¬ 
cles only, not a leaf present. It is a Stuckert specimen and I 
understand the Stuckert grasses sent to Hackel were all returned 
sor Hackel kept. The Stuckert 
Herbarium in Geneva, but when 
I was there in *22 Dr. Briquet said that Stuckert had left strict 
orders that the cases were not to be opened. The panicle and spikelets 
are very like yours, but two collections from Argentina with the same 
kind of panicle have a base somewhat different from yours. In any 
case it is a wonderful find. The species will be worked out definitely 
for your Flora. 
No. 7358 is an over mature specimen of Bouteloua that does not 
fall into any species of Bouteloua. Mr. Swallen has done the Chlorideae 
for the North American Flora and has Bouteloua well in mind. He hesi¬ 
tated to send this in as an addition to his manuscript because the 
specimens are well past maturity. We hope on your next trip that ycu 
may be able to collect this species again. 
I was delighted to see Muhlenbergia repens from Mexico. The 
type was collected in Mexico, and, so far as we know, the species 
has never since been found south of the United States. 
You see what a thrilling lot of grasses you sent us. We are 
eagerly awaiting results of your next trip. 
Sincerely yours. 
Agnes Chase, Senior Botanist 
Office address: Smithsonian Institution 
