458 REPORT OF NEW JERSEY STATE MUSEUM. 



THALICTRUM L. 

 Thalictrum dioicum L. Early Meadow Rue. 



Thalictrum dioicum, LiniiKus, Sp. PI. 545- I7S3 [Canada].— Britton 35. 



Comm'on in rocky woods of the northern counties ; very rare 

 within our limits and confined to the Middle district. 



Fl. — Late April to early May. Fr. — Early May to mid-May. 

 Middle District. — Pemberton (NB), Swedesboro. 



Thalictrum revolutum DC. Purplish Meadow Rue. 



Thalictrum revolutum Decandolle, Prodr. I. 12. 1824 [North America]. 

 Thalictrum purpurascens Barton, II. 21. 1818. — Britton 35. 



Frequent or occasional in woods of the northern counties ; 

 very rare and local southward in the Middle and Cape May 

 districts. 



Fl. — Late May to early July. Fr. — Late July to early Septem- 

 ber. 



Middle District. — Farmingdale, Pt. Pleasant, Cooper's Creek (C), Swedes- 

 boro. 

 Coast Strip — Mays Landing (NB). 

 Cape Maji.— Cold Spring (OHB). 



Thalictrum polygamum Muhl. Tall Meadow Rue. 



Thalictrum polygamum Muhlenberg, Cat. 54. 1813 [Pa,].* — Britton 35. 

 Thalictrum. cornuti Knieskern 5. — Willis 2. 



Common in swamps and moist thickets of the Northern and 

 Middle districts, also on the coast strip south to Cape May. * 



The Meadow Rue is one of the familiar swamp plants of mid- 

 summer in North and West Jersey, and after crossing the Pine 

 Barrens it is one of the old friends that we find again in those 

 rich swamps, where the interior country meets the edge of the 

 great salt meadows of the coast. 



The coast plant seems to be constantly shorter than the typical 

 Pennsylvania form, with thicker leaves, but in time of flower 

 and general structural characters they seemi to be identical. 



Fl. — Late June to early August. Fr. — Late August to early 

 October. 



* Cf. Gray Am. Jour. Sci., Ser. 3, XXXI. 236. 1886. Strictly speaking, 

 this name has no status from Muhlenberg's catalogue, but. I follow others in 

 retaining it for the present. 



