874 



RUBIACEAE 



Spermacoce 



50 



Map 1914 



Spermacoce glabra Michx 



Miles 



50 



Map 1915 



Galium circaezans Michx 



6 30 

 Map 1916 

 Galium circaezans 

 var. hypomalacum Fern. 



railroads. It is restricted mostly to the southern half of the state although 

 we have a few reports from the northern part of the state along railroads. 



The pubescence of the stem of all my specimens is dense, spreading, and 

 less than 0.5 mm long. A few specimens have in addition a few long 

 spreading hairs about 1 mm long. 



Southern Mich, to Texas; represented east of Indiana and south to Fla. 

 and west to Tex. by the typical form of the species. 



8475. SPERMACOCE [Dill.] L. 



1. Spermacoce glabra Michx. SMOOTH BUTTONWEED. Map 1914. In- 

 frequent to frequent on the muddy slopes of rivers, ponds, and sloughs and 

 in very low, open woods. Reported, also, from Clark and Jefferson Coun- 

 ties. 



Southern Ohio, 111., and Ark., southw. to Fla. and Tex. 



8486. GALIUM L. Bedstraw 



Fruit uncinate or more or less hispid. 



Leaves 3-nerved, at least at the base (obscurely so in a form of no. 4), not cuspidate. 



Flowers along the primary branches of the inflorescence, sessile or nearly so, 



greenish yellow or purple. 



Plants more or less pubescent; upper leaves generally ovate to ovate-lanceolate, 



obtuse or rarely somewhat acuminate; corolla greenish yellow, 2-2.5 (3) mm 



wide, generally pubescent. 



"Larger leaves 1.5-2.5 cm long and 0.7-1.4 cm broad, the nerves beneath 



sparingly short-hispid to glabrous."* 1. G. circaezans var. typica. 



"Larger leaves 2-5 cm long and 1-2.5 cm broad, their nerves conspicuously 



long-hirsute beneath."* la. G. circaezans var. hypomalacum. 



Plants glabrous or nearly so; upper leaves generally lanceolate to narrow- 

 lanceolate, generally long-acuminate or acuminate; flowers deep purple, 



rarely greenish yellow, 3-6 mm wide, glabrous 2. G. lanceolatum. 



Flowers pedicellate, paniculate. 



Leaves oval, more or less pubescent, the median ones usually 6-12 mm wide; 

 corolla greenish purple 3. G. pilosum. 



*Free translation from Rhodora 39: 450. 1937. 



