[VoL. 3 
346 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
But little botanical work had been done in the area prior 
to the beginning of the writer’s collection. In connection 
with the work of the State Geological Survey some collections 
were made by Professor Garland C. Broadhead, who visited 
Jasper County. Mr. B. F. Bush had also done some collecting 
about Joplin and Carthage, and possibly others may have 
collected in the county; but it may be said to have been 
practically an unknown field, and that it has proved an 
interesting one is attested by the fact that since the beginning 
of the present century a number of eminent botanists have 
visited it. Among these is Dr. C. S. Sargent, the dis- 
tinguished director of Arnold Arboretum and author of the 
‘Silva of North America,’ who has made several trips 
through the county and has deseribed about 40 new species 
of trees and shrubs, based wholly or in part upon Jasper 
County material. Most of these are of the genus Crataegus, 
the red haws, of which many interesting forms are found 
here. Mr. Alfred Rehder, of Arnold Arboretum, has also 
described a new variety of crabapple, Malus %0еп818, var. 
Palmeri, and an elderberry, Sambucus canadensis, var. sub- 
mollis, found in our area. Алеха latifolia is a new species 
of the meadow-beauty collected in Jasper County and de- 
seribed by Mr. B. F. Bush. Mr. K. K. Mackenzie has re- 
cently published a description of Geocarpon minimum, a new 
and anomalous genus, at present known only to occur in 
our county. Several other plants are still subjects of study 
and may prove worthy of distinction. 
In addition to the new species brought to light, a number 
of previously described plants, but not before collected or 
known in Missouri, and several that are not given as oc- 
curring in the range of Gray's ‘Manual’ have been found. 
Among these may be mentioned Amphilophis Torreyanus, 
Setaria imberbis, Stenophyllus ciliatifolius, Scirpus carima- 
tus, Carex arkansana, Crataegus spathulata, var. flavantha, 
Lathyrus pusillus, Vitis Linsecomii, Myriophyllum proserpina- 
coides, Daucus pusillus, Lamium purpureum, Hedeoma acin- 
oides, Diapedium brachiatum, Chrysopsis pilosa, Erigeron 
tenuis, E. nudiflorus and Marshallia caespitosa. Plants of 
