DIADELPHIA OCTANDRIA. 



187 



keel of the corolla greenish yellow. Seeds under a microscope slightly 



Grows in ponds in the flat pine barrens interminded with the P. C6- 

 rymbosa. * 



Flowers June — August. 



14. B 



ALDUINI. 



Nutt. 



P. caiile erecto, su 



perne ramoso 



foil i s 



V 



Stem erect, brancli- 



infeiioribus spathula 



tJs, obtusis 



7 



cauli 



nis 



ing 



5 

 near the summit; 



lower leaves spathu 



late, 



obtuse 



5 



Stem 



leaves lanceolate; flow- 



ers 



capitate, heads 



squarrose,corymbose; 

 calycine wings with a 



setaceous acumi nation 



lanceolatisjfloribus ca- 

 pitato-corymbosis, ca- 

 pitulis squarrosis, alis 



calycinis setaceo-acu- 

 minatis. 



Nutt. 2. p. 90. 



Stem 2—5 feet high, slightly angled. (Radical leaves spathulate, ob- 

 juse; Auttal:) stem leaves small, diminishing towards the summit 

 lanceolate. Flowers in small heads, forming an irregular corymb, very 

 squarrose from the setaceous acumination of the calycine wings. Ca- 

 tyctne wings and Corolla yellowish white. Carina scarcely if at all 

 fimbriated. Seeds minutely hispid. 



This plant was sent to rae by the late Dr. Baldwin, as the P. Acumina- 

 ta, a name which the structure of the calycme wings renders very appror 



Grows in the southern districts of Georgia near St. Mary's. 

 * lowers June— Autrust. 



>, 



^f ■ 



15. CoRYxMBOSA. 



P. caule erecto, te 



feti, sub hudo 



foliis 



Jnferioribus longis^lin 



^ari^Ianceolatis, cau- 

 "^is subulatis,superne 



^mutis 



floribus ra 



cemosQ-corymbosis 



3 





Stem erect, terete, 

 nearly naked ; lower 

 leaves long, linear-lan- 

 ceolate, stem leaves 

 subulate, minute near 

 the summit ; flowers 



m 



corymbose 



ra 



