PLANTS OF SOUTHERN NEW JERSEY. 701 



f. Leaves 4 in a whorl, i nerved. 



g. Hirsute pubescent. Galium pilosum, p. 704 



gg. Glabrous or nearly so. 



G. pilosum puncticulosum, p. 705 

 //. Leaves 4 in a whorl, 3 nerved. 



g. Upper leaves lanceolate acuminate. 



G. lanceolatum, p. 705 

 gg. Upper leaves ovate, oval or obovate, obtuse. 



G. circaesans, p. 705 

 iff. Leaves 6 in a whorl. G. triHorum, p. 705 



ee. Fruit smooth and glabrous. 

 f. Fruit dry. 



g. Leaves obtuse. 



h. Corolla 2-2.5 mm. broad, white, leaves, mostly 



in 4's. G. tinctorium, p. 706 



hh. Corolla 1.5 mm. broad or less, greenish white, 



leaves 4 or 6 in a whorl. G. claytoni, p. 706 



gg. Leaves acute or cuspidate. 



h. Stem nearly or quite smooth. 



i. Leaves all in 6's. G. concinnum, p. 706 



a. Leaves in 8's, or in 6's on the branches. 



[G. erectum]* 



hh. Stem retrorse hispid, leaves 6 in a whorl or 4-5 



on the branches. G. asprellum, p. 707 



ff. Fruit fleshy, resembling a double berry, plant glabrous 



or hirsute, leaves in 4's. G, hispidulum, p. 707 



HOUSTONIA L. 

 Houstonia caerulea L. Bluets. Quaker-Lady.f 



Houstonia ccerulea Linnaeus, Sp. PI. 105. 1753 [Virginia]. — Barton Fl. Phila. 



I. 84. 1818.— Willis 29.— Britton 125. 

 Oldenlandia ccerulea Knieskern 17. 



Frequent in open, damp sandy ground, meadows, etc., in the 

 northern counties, but rare and local within our limits and con- 

 fined to the upper edge of the Middle district or close to the 

 Delaware. 



Fl. — Late April to late May. 



Middle District.— Shark River (C), Allentown (C), New Egypt, Vin- 

 centown (C), Kinkora, Camden Co. (C), Stoe Creek Twp. (C). 



* Wild Madder, occasional on roadsides. 



i Houstonia longifolia Gaertner (Fruct. I. 226, pi. f. 8. 1788, no location), 

 was collected at Manchester, Ocean County, by J. W. Chickering, Jr., in 1877, 

 according to Britton (125) ; not known from elsewhere in the State and 

 perhaps merely a casual introduction. I have seen no specimens. 



