90 MISSOURI BOTANICAL GARDEN. 
16. R. conatomeratus, Murray. — Mostly clustered, 
slender stemmed, glabrous; leaves not over 5x10 cm., 
ovate or mostly oblong, frequently somewhat fiddle shaped, 
obtuse ; flowering branches slender, at length elongated ; 
not zigzag, ascending, bearing a broadly lanceolate leaf at 
nearly every node; whorls dense, very remote except at 
ends of branches ; pedicels rather slender, about as long as 
the fruit, tumidly jointed near the base; valves 1.5x 2.5 
mm., nearly oblong, obtuse ; callosities mostly 3, round to 
ovoid, very prominent, smooth except for the sides 
below, where they pass into the larger veins, half as long 
and nearly as wide as the valves; achene 1.5x2 mm. — 
Prod. Fl. Goetting. (1770), 52; Meisner, DC. Prod. xiv. 
49.— A European plant introduced sparingly along the 
Atlantic Coast, and abundantly in California,— Specimens 
examined from Virginia ( Curtiss, 1872 ; Dep. Agr., 1878), 
South Carolina (Ravenel), and various parts of California 
( Palmer, 1875; Rothrock, 1875, 64; Parry and Lemmon 
1876, 372; Greene, 1876, 970; Hooker and Gray, 1877; 
Nevin, 1878; James, 1879; Vasey, 1880, 546; Mrs. 
Brandegee, 1891 ; Blankinship, 1891 ),—and ballast at New 
York (Brown, 1879, 12). — Plate 28. 
R. sancuinevs, L.— Habit and general appearance of the 
last, but the slender flowering branches leafless, and one 
only of the valves with a large round callosity ; veins of 
leaves, etc., typically very red.— Sp. i. (1753), 334; 
Meisner, DC. Prod. 49.—An occasional waif in the 
Atlantic region, seen by me only from ballast at Philadel- 
phia (Martindale, 1880).— A form destitute of the red 
veining (var. viridis, Smith) from Tuscaloosa, Ala. 
(Smith, 1876), and on ballast near Phildelphia ( Martin- 
dale, 1878), and at N. Y. City ( Brown, 1879, 15). 
This species was described by Linueus as from * Vir- 
ginia,’’ but there is little doubt that it is a native of Europe. 
What has frequently passed for it in this country is the 
red-veined variety of F. obtusifolius, which is readily 
