450 



POLYGALACEAE. 



Vol. H. 



10. Polygala Curtissii A. Gray. Curtiss' Milk- 

 wort. Fig. 2704. 



Polygala Ciirlissii A. Gray, Man. Ed. 5, 121. 1867. 



Erect, slender, 8'-io' liigli, much resembling the preced- 

 ing species and the following; heads globose or rarely 

 elongated, at first pointed, bhmt when fully developed, 

 oosely flowered, 4"-6" thick ; bracts persistent, mainly 

 shorter tlian the slender pedicels; flowers purple; wings 

 oblong, clawed, nearly erect, twice the length of the pod; 

 seed obovoid, very hairy, apiculate ; caruncle minute, much 

 shorter than the seed. 



In dry soil. Pennsylvania to Kentucky, Georgia and Ala- 

 bama. Aug.-Sept. 



II. Polygala mariana Mill. Maryland Milk- 

 wort. Fig. 2705. 



Polygala mariana Mill. Gard. Diet. no. 6. 1768. 

 Polygala fastigiata Nutt. Gen. 2: 89. 1818. 



Annual, slender, glabrous, 6'-i6' high, at length 

 much branched above. Basal leaves none ; stem- 

 leaves linear, 3"-9" long, about l" wide, entire, 

 mostly acute, mucronulate ; heads globose or slightly 

 longer than thick, obtuse, 3"-4" wide; pedicels slen- 

 der, iJ"-2" long; flowers rose-purple; wings ovate- 

 oblong or obovate. pointed, narrowed at the base, 

 slightly longer than the pod ; bracts deciduous from 

 the elongating axis; caruncle-lobes embracing the 

 smaller extremity of the slightly hairy obovoid seed; 

 corolla minutely crested. 



In dry soil, southern New Jersey and Delaware to 

 Florida, west to Kentucky and Texas. July-Sept. 



12. Polygala Nuttallii T. & G. Nuttall's Milkwort. 

 Ground Centaury. Fig. 2706. 



Polvgala sangninea Nutt. Gen. 2 : 



1818. Not L. 1753. 



Polygala Nuttallii T. & G. FI. N. A. i : 670. 1840. 



Annual, glabrous, erect, slender, 4'-?' high, branching above. 

 Basal leaves none; stem-leaves numerous, linear or linear- 

 oblong, 3"-8" long, i"-i" wide, entire, obtuse or acutish ; 

 spikes cylindric or oblong, about 2" thick, 3"-6" long, the 

 floral axis elongating as the fruits fall away from below ; 

 pedicels i" long or less; bracts subulate, persistent; flowers 

 greenish or yellowish-purple, i" long; seed obovoid, very 

 hairy, longer than the caruncle; wings oblong to oval, about 

 equalling the pod; crest very small. 



In dry sandy soil in open places, eastern Massachusetts to North 

 Carolina : apparently erroneously recorded from farther west. 

 Aug.-Sept. 



