88 DIADELPHIA. oeTANDRIA. 



cumbent, apetalous. P. rubella, Willd. Hab. In the Pine 

 forests of Lake Micliigan. Obs. Perennial, and subde- 

 eumbent; flowers reddish. Allied to P. Senega. Mr. 

 Pursh's plant appears to differ considerably from the oire 

 here described, but 1 am persuaded it is the same, from 

 a good specimen wliich I have seen in the possession of 

 Z. Collins, Esq. agreeing with the Michigan plant. 



9. lutea. Stem branching, lower leaves spathulate, upper 

 lanceolate; spike subcapitate, obtuse; wings of the calix el- 

 liptic, acute, bractes shorter than the flowers. Hab. New 

 Jersey to Florida. 10. viridescens. Stem simple or none; 

 radical leaves spathulate, often retuse, cauline ovate; 

 spike ovate; wings of the cahx acuminate; braces nearly 

 as long as the sessile flowers. Hab. In the Pine forests 

 of Carolina and Georgia, Obs. Autumnal and winter 

 spikes squaiTose and stemless, sessile amidst the radical 

 leaves; flowers always green with a tinge of yellow. It 

 appears to be very nearly allied to the preceding, but 

 what resemblance it bears to P. incnrnata is more than I 

 can imagine, and Mr. Pursh's giving it a habitat in Penn- 

 sylvania almost proves that he had never seen our plant. 



11. * purpurea. {P. sangrnnea, Michaux, Pursh.) An- 

 nual: stem fasiigiately branched; leaves alternate, ob- 

 long-linear; flow ers beardless, inibricated in obtuse eylin- 

 drJc spikes; rachis squariose; wings of the caHx cordate* 

 ovatr, erect, twice as long as tlie capsule. Hab. Common 

 throughout Nortli America. Flowers rosaceous. 



12. sangiiinea. L. Annual: stem fastigiately branched; 

 leaves alternate, nari-ow-linear; flowers beardless, dispos- 

 ed in long and crowded spikes; rachis squarrose; calicine 

 wings obovate, the length of the capsule. Hab. In the 

 low Pine barrens of New Jersey. Flowering in July and 

 August, Alhed proximately to P. purpurea, but very 

 distinct; a much smaller plant, with short and narrow 

 leaves; spikes acute, growing out 2 or 3 inches long, 

 loose compared with the preceding; flowers small and 

 sanguineous, or dark red intermixed with green from the 

 imperfectly concealed capsules; the proper corolla yellow- 

 ish; rachis much more squarrose than in the preceding. 

 I believe this to be the P. sangninea of Linnaeus, though 

 now the preceding, which is much more common, passes 

 for it. This species also accords very well with Plukenet, 

 Mant. 153. t. 438. f. 5. 



13. Terticillata. Annual: leaves vert icillate, linear and 

 remote; flowers cristate, greenish, calicine wmgs round- 

 ish, nearly veinless, and shorter than the fruit to which 

 they are appressed; spikes pedunculate, subacute; brae- 



