MONOCOTYLES. 85 



a tuft of hairs at the tip very different from 

 my Tr. barbata, only seen in gardens, leaves 

 broad, involucre* large long not bearded. 



456. Trad, virgin, var. ramosa Raf. 3 to 4 

 feet high much branched, with large leaves and 

 flowers. Another garden variety. 



457. Trad, virgin, var. angustifolia, Raf. 

 Probably the real type of Virginica, since the 

 most frequently found wild by me on the R. 

 Schuylkill, the hills of Maryland and Virginia. 

 Stem simple pedal, leaves linear lanceolate very 

 long, longer than stem, 6 to 9 inches, flat and 

 margin ciliate at the base. Umbel multiflore 

 6-12flowers nodding, 2 foliose involucre flat 

 subequal 3 to 4 inches long, peduncles and ca- 

 lix pilose, flowers rather small, vernal in May. 

 Roots perennial fasciculate. If a peculiar sp. 

 it may be called Tr. ciliata. 



458. TRAD. LEVIGATA Raf. Quite smooth ra- 

 mose, leaves narrow lanceolate elongate flat 

 glaucescent, base dilatate undulate and vagi- 

 nate, umbels terminal and axillary multiflore 

 glomerate, involucres foliose lanceol. unequal, 

 calix smooth glaucous or incarnate in the A- 

 palachian Mts. of Virginia and Carolina, intro- 

 duced in our gardens, 2 feet high, very pretty, 

 flowers blue. A var. incarnata has flesh co- 

 lored flowers. 



459. TRAD. BARBATA Ruf. Smooth simple, 

 leaves linear lanceol. canaliculate pale elongate 

 erect ; umbel pauciflore involucre subunifoliate 

 very short, peduncles unequal erect; calix 

 bearded at the tip as well as the involucres 

 Illinois and West Kentucky, pedal, flowers blue 

 4 to 5. Several varieties. 



460. Trad, barbata var. pamila Raf. diff. 

 semipedal, in vol. bifoliate base swelled. Ken- 

 tucky. 



