‘Tab. 10. 
 Colvillane. 
| CNOTHERA DENTATA. 
‘ Nar. Orv. Onagre, Juss. Linn. Syst. Octandria Monogynia. 
(ENOTHERA, Linn. Juss. Cal. longus cylindricus apice deciduus cum limbo 4-partito. Pet. A. Stam. 8. Anthere 
oblonge incumbentes. Stigma 4-fidum. Capsula longa cylindrica sub-4-gona A-locularis 4-valvis polysperma, 
valvis medio septiferis, seminibus nudis numerosis angulatis receptaculo centrali affixis. Herbe, quedam hgnose ; 
folia alterna; flores solitaru axilares. Juss. Gen. 319. 
* 
ire 
(Enothera dentata, foliis sublinearibus denticulatis, capsulis cylindraceis angustissimis curvatis. R.et Pav. Fl. Per. 
p. 81. t. 317. Pers. Ench. 1. 408. 
CH. dentata. Cav. Icon. 4. 67. t. 398. 
i. Chamissoi. Hort. so, 
Descr. Herba procumbens, debilis, glabra. Cazles teretes, ramosi, colorati. Folia sparsa, lineari-oblonga, denticulata, 
glauca, subenervia. ores sessiles, axillares, lutei, sub sole matutino aperientes ; ovario. piloso, tetragono, incurvo, pedicelli- 
e ° . e . 2 W . we m4 ’ . > > > m "Te 7 
formi stipitati. Cal. deciduus, 2-partitus, tubo obconico, sepalis ovatis obtusis breviore. Pet. 4, fauce inserta, patentia, con- 
cava, subrotunda, non plicata, zstivatione convoluta. Stam. 8 fauce inserta, erecta, 4 petalis opposita /breviora. Anthere 
obovate, incumbentes, longitudinaliter dehiscentes. Pollen triquetrum pilis paucis coherens. Ovarium inferum, 4-loculare, 
polyspermum, ovulis é dentibus placenta ascendentibus. Stylus filiformis staminum longitudine. Séigma_capitatum. Capsula 
linearis, arcuata, torulosa, 4-valvis, polysperma; valvis medio septiferis, a placenta axili separantibus. Semina minuta, brun- 
nea, nitida. Rapha simplex et chalaza conspicue. Testa fragilis. Embryo rectus, radicule conice collo coarctato, cotyledo- 
nibus planis carnosis. 
ae A AI Ne a == 
We obtained this pretty little plant, in the autumn of last year, at Messrs. Colvills’ Nursery, King’s Road, Chelsea, 
where it had been received from Berlin under the name of Gi. Chamissoi. We cannot, however, find it mentioned 
any where by such an appellation ; and we have ascertained, by comparison with original native specimens from 
Don Jose Pavon, preserved in the vast herbarium of Mr. Lambert, that it differs in no respect whatever from the 
Q!. dentata of the Flora Peruviana. The Qnothera dentata of Pursh is a different species, lately distinguished by 
Mr. Nuttall by the name of GH. serrulata. _ 
If our figure and description be compared with the character of G’nothera as defined by Jussieu and understood 
by Linneus, they willbe found to disagree with it in some particulars of importance. Instead of the 4-cleft stigma 
of Ginothera, it has the capitate stigma of Jussiea ; and in place of a calyx divided into four pieces, it has sepals 
cohering in pairs in such a manner as to have the appearance of being two only, and not four. We have neverthe- 
less retained it in Ginothera, because we think that it has more characters in common with that genus than with Jus- 
sia, especially if a persistent calyx be a necessary feature of the latter genus; which we feel disposed to think is the 
fact. For mere are such near approaches to the capitate form of stigma in Gnothera, especially in GQ. purpurea, 
as our intelligent friend Mr. D. Don has remarked to us, that we cannot place perfect reliance on that character alone 
for Jussiga, unless accompanied by a permanent calyx also. . 
The natural order of Onagre, so called by J ussieu from the name Onagra applied to Hnothera by 
is chiefly comprised of ornamental herbaceous plants, with short-lived but numerous and pretty flowers ; generally 
closed in the day-time, and sometimes exhaling a grateful perfume towards evening. The limits of the order, strictly 
eae ee ae s Lae ES pee ai ae into a superior calyx, Dy a capsular or 
Fuchsia is an example, are nearly allied to Myrtacee creel ae ae Sipeny for thee frat, yay 
minate number of stamens, and in the form of their allio The = euros aeons oeCee Lene a geler: 
are united by a cobweb-like filamentous substance, is eoriniont to ae Sioa foe Le 
mee genera of the order, but not to all. The small 
group of genera composed of Hippuris, Myriophyllum, Proserpinaca, and a few others, formerly referred to Ona- 
gre by Jussieu, but since distinguished as a separate order by himself under the name of Cer l ; 1 Ty / ie 
under that of Haloragee, differ not only in their oligospermous fruit. but in the directi ee a SOs by Mr. Br ees 
Gnagre are always either horizontal or ascending, and never pen dulous ee ee 2 of their ovula, which in 
Native of fields, hedges and barren places in Chili and Peru, where it was foun d'by Ruiz and Pavon, 
‘Tournefort, 
EXPLANATION OF THE PLates. 
1, An expanded flower, with its stalk-like ovarium. 2, The same 
cohere by pairs, and the insertion of stamens. 3. A section of part of the ovarium, showi : . 
projections of the placente ; and the style and stigma. 4, A transverse sectior P ; eae the insertion of t 
6. Anthers after bursting. 7. The pollen. 8. Acapsule. 9. A portion ofa a ae € ovarium. 5. Anth 
same magnified. 12. 'The same, showing the rapha and chalaza, 13, Riahivo its valves, 
without its petals, showing the manner in which the sepals 
he ovula upon little 
ers before bursting. 
10. Seeds, natural size. 11. The 
