38 
NORTH AMERICAN 
290. Phryma pubescens Raf. pubescent, 
leaves subsessile ovate or elliptic, subcordate 
acuminate ciliate unequally crenate, last pair 
entire, bracts subulate equal to calix— Allegha- 
ny mts. pedal, flowers purplish. 
291. Phryma parvieolia Raf. smooth, 
leaves all petiolate ovate oblong equally serrate 
bracts shorter than calix — Alleghany mts. pe- 
dal, leaves small uncial, flowers white. 
292. Phryma leptostachya L. <$°c. smooth, 
leaves difforme lower petiolate ovate base acute 
deeply serrate, upper sessile ovate often en- 
tire, bracts equal to calix — the most common 
kind, from New York to Carolina, 1 or 2 feet 
high. If all the above are mere varieties of 
this, they afford a fine illustration of incipient 
species forming under our eyes in our woods. 
293. THEC ANISIA Raf. a N. G. of Spi- 
rea tribe, near to Filipendula — cal, 5fid. per- 
sistent reflexed, petals 5, stamens few 12 to 15, 
pistils 3-5 stipitate with a style, stigma capitate. 
Fruit 1 to 5 thecas unequal stipitate oblong 1- 
3seeded. Herbaceous perennial plants with 
lobed or palmate leaves subpinnate , stipulate , 
flowers paniculate . — The essential character 
besides habit is found in the stipitate unequal 
pistils and fruits, the types are Spirea lobata 
and discolor , but others probably belong here, 
and I add two. The name means unequal 
thecas. 
294. Thecanisia lobata Raf. Spir. do Au- 
thors leaves subpinnate smooth, folioles 3lobed, 
the last 71obed, lobes lanceolate doubly serrate, 
panicle cymose compound — from Carolina to 
Alabama in hills, large plant 3 to 4 feet high, 
flowers rose colored. 
295. Thecanisia ponpurea Raf. stem stri- 
