NOTES. 
Convolvulus suffruticosus, Vol. 2, fol. 188; and Convolvulus pannifolius, 
fol. 222, of this volume. es 
Mr. Herbert, who has given peculiar attention to the hybrid intermix- 
tures as well as seminal variations of species, writes to us, that he is con- 
vinced that the latter of the above two plants is purely a seminal variety of 
CoNVOLVULUS canariensis; and that he suspects the first to be another 
variety of the same. Upon this head we can take no responsibility to ours 
selves; we have recorded them as distinct because they really differed, and 
we found them so recorded in books of the first authority. But experience 
is the certain test of variety and species ; and if pannifolius has been raised 
from the seeds of the true canariensis, there is an end of the question. We 
are highly obliged to Mr. Herbert for the communication, as well as much 
other valuable assistance. “a : 
Hyoscyamus canariensis. Vol. 3. fol: 180. 
Since the publication of the above article, we have had an opportunity 
of inspecting the corolla, and of making the subjoined addition to the de- 
scription. 
Cal. semuncialis turbinatus. Cor. subexcedens unciam, erecta, ‘angusté 
infundibuliformis, elongata, extis viscoso-pilosa, nervoso-striata, venoso- 
reticulata: tubus multotiés longior limbo, luridus: limbus rotato-campanu- 
latus, bilabiato-obliquus, lobis tribus summis oblato-rotundis, imis duplo ° 
angustioribus ab invicém profundiis divisis. Fil. subinequalia, parld breviora 
Jlore, inferné alba, pilostuscula, superné ‘violacea: anth. ovate, didyme, ~ 
erecte, ochroleuce, introrsim verse. Stylus violaceo-nurpurascens, filiformis, 
glaber: stig. bilobo-subpileatum, lobis brevibus rotundatis, replicatis, puberulis, 
purpurels. 
Donia glutinosa. Fol. 187. “pd 
For the reasons why the generlc-title of Dowra should be exchanged 
for that of GrinnE.tra, see the 248th article in this volume. In the above, 
for Donra read GRINDELIA. 
Silene pensylvanica. Supra fol. 247. 
The English text of that article, which begins, « The Sirenr virginica 
of Linnwus and the Sirene Catesbei of Walter, have been adopted by 
Willdenow as distinct species,” &c.; should have stood as follows: 
“The Sireve virginica of Linneus and the StLeNe caroliniana of 
Walter, have been adopted by Willdenow (the latter under the title of 
SiLeneE Catesbe@i) as distinct species,” &c. 
Trapa natans. Fol. 259. ee 
. The generic character. omitted in its place in the above article, is added 
ere: ; : 
TRAPA. Cal. superus, 4-partitus, laciniis acutis. Cor. 4.-petala. 
Stylus 1; stigma emarginatum. Caps. nuciformis, 1-sperma, 4-gona, 2-4- 
dentibus calycinis persistentibus recurvis in spinam induratis armata: semen 
tuberosum. Herb aquis innatantes, caule Sstmplici submerso ; folia caulina 
submersa radiciformia, verticillata, multifido-capillaria : Jlroralia emerse al- 
terna, petiolo, ne demittantur, ventricoso-cavo ; flores solitarit axillares. KE 
superiore-capsule germinantis poro plumula exurgit, semini indiviso continua, 
lateribus supra radicans. An indé semen 1-lobum, et affinitas cum Naiadibus: 
an’ patins bilobum cum staminibus perigynis et corolla intra calycem 4-fidum 
4-petald,giadeque Onagris adscribendum genus? Jussieu gen. 68, i 
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