468 Harper : Collection of Plants in Georgia 



hills near Seventeen Mile Creek in Coffee county, September 24 

 (no. 696). Both localities are on the Columbia formation, where 

 I have never seen 5. capillaris. I have been unable to distinguish 

 satisfactorily between 5. ciliatifolius and 5. coarctatus (Scirpus 

 coarctatus Ell.), but to whichever my plants belong, they are 

 certainly distinct from S. capillaris. 



Rhynchospora alba macra Clarke ; Britton, Trans. N. Y. Acad. 



Sci. 11 : 88. 1892 



Collected in a wet sloping bog in Coffee county, September 25 

 (no. 716), with Sagittaria Mohrii. Not previously known from 

 Georgia. 



Rhynchospora solitaria sp. nov. 



Probably annual. Stems solitary, 5-6 dm. tall, very slender, 

 flattened : basal leaves few, about half the length of the stem and 

 3 mm. wide, flat or nearly so, weak ; upper stem -leaves 2 or 

 sometimes 1 : when 2 (as in most of my specimens) the upper- 

 most is short, setaceous, inserted 4-6 cm. below the inflorescence, 

 the other about 20 cm. below the inflorescence, 4-6 cm. long, and 

 as wide as the basal leaves (when only one stem-leaf is present 

 it is intermediate in character and position between the two just 

 described); spikelets lanceolate in outline, 1 -flowered, 5-6 mm. 

 long, aggregated in a single dense terminal compound capitate 



corymb 12-15 mm. broad, with filiform bracts slightly exceeding 



the inflorescence : achene oblong, compressed, faintly pitted, 

 1.5 mm. long, capped with a triangular tubercle about a third its 

 length : style exceeding the spikelet, 2-cleft less than half its 

 length, its branches recurved : bristles about 6, very fragile, 

 equalling the achene, very minutely hispid upward. 



A species apparently without close affinity to any other 01 

 which I have any knowledge. Readily distinguished by its soli- 

 tary slender culms, flat basal leaves, short upper leaves, terminal 

 inflorescence, and narrow spikelets. Resembles most in general 

 appearance R. pallida M. A. Curtis, but that is a stouter cespitose 

 plant with the very different achene and bristles. 



Collected in moist pine barrens, Tifton, Berrien county, on 

 Sept. 19 (no. 668), altitude about 340 ft. An inconspicuous 

 plant, growing scattered among the grass, with Biirmannia capi- 

 tata and Sarracenia psittacina. 



The specific name used has a double significance, applying to 

 both the solitary culms and the solitary inflorescence. 



