Mr. Geyer’s Plants of Tlinois and Missouri. 99 | 
“= 95. Monarda punctata, Linn, » 
“96. Dracocephalon, Virgintaium, Linn. 
“97. Scutellaria galericulata, Linh 
98. Verbena paniculata, Lam. With undivided leaves, the true 
eo paniculata ; and with the lower leaves divided, lobed or has- 
E tate, V. hastata, Linn., which can hardly be called even a varie- 
ty. As Lamarck’s name is equally applicable to both forms, it 
probably ought to be preferred to the Linnean name. 
99 to 102. Four hybrids of different species of Verbena, which 
é together with several others that abound in this neighborhood, 
Mr. Geyer appears to have found equally abundant on the sandy 
| wastes near Beardstown, and on the sandy islands of the Illinois 
River. 
. The names, chosen according to Schiede’s proposition, indi- 
cate the pareni plants; but it is often difficult enough to detect the 
_ parentage ; indeed to ascertain which is the male and which the 
a female parent is probably quite impossible if actual experiments 
_ be not instituted. Generally both parents grow near the hybrid, 
| but as these Verbenz are perennial, the hybrids, being unable to 
produce seed, propagate the more readily by stolons, and spread 
in some localities so as even to exceed one or the other of the * 
parents in number. In such cases we have to rely entirely on 
the resemblance of the offspring to some true species in the vicin- 
ity. All these hybrids, however, are known to be such by their: i 
luxuriant growth exceeding that of their parents, by their sterili- + 
ty, and mostly by their local appearance in places where their | 
parents are common. We find, as is naturally to be expected, 
- many hybrids which resemble one of their parents more than the 
- other; and hence many intermediate hybrid forms may be ob- 
_ Served, so as to furnish all the connecting links between two very 
distinct species; this of course not proving the identity of such 
Le _ Species, but rather the reverse. No hybrids are more common 
than those between V. stricta, Vent. and V. urticafolia, 
and 1 wai specimens not only of V. urticefolio-stricta, | 
(near and of V. stricto-urticefolia, (near V. urticafo- 
‘ lia,) but of acl intermediate forms; the extremes of which 
might be taken for mere varieties of V. stricta and of V. urtica-.. 
_ folia; or they may be produced by seeds from these plants, adul- 
_terated by some pollen from the other species. The difficulty is 
; by the fact. that these doubtful. hybrids — more 
Se OE OR SE 
