On Menodora and Bolivaria. 43 
have been cultivated by Dr. Engelmann and myself for the last 
three years, and Dr. Engelmann sent me characters of them in 
the autumn of 1850. He noticed that, while the Breviflore (his 
Bolivaria heterophylla and B. scabra) open their flowers in the 
morning, and are inodorous; the Longiflore (B. longiflora) ex- - 
pand their blossoms, which are fragrant, at or towards evening. 
He also remarked that the anthers of B. longiflora are almost 
Sessile, and included within the summit of the narrow tube, which 
is glabrous; while in the others, the anthers are exserted on slen- 
der filaments, and the throat of the corolla is more or less hairy 
within. The style, moreover, is less exserted in B. longiflora, 
and the lobes of the corolla are rather conspicuously pointed. 
All these characters are confirmed by a second species, if such it 
be, which f find in Mr. Wright’s collection of 1851. Perhaps it 
18 no more than a hairy variety of the last. These are far the 
most showy plants of the genus, their pure yellow corollas being 
from an inch and a half to two inches long; and they continue 
to blossom for a long time, though not so long as M. heterophylla, 
which flowers through the whole growing season. 
The known species may be thus disposed. 
MENODORA, Humb. § Bonpl. 
Menodora & Bolivaria, Cham. & Schlecht., Griseb. D C. Ul. ce. 
$ 1. Borivaria, Cham. & Schlecht. Calyx 5-lobus, raro 
6-lobus, Corolla campanulata seu infundibuliformis, lobis acu- 
iusculis. Filamenta filiformia corollam subsequantia; antheris 
muticis. ; ve . 
* Lobi calycis lineares tubo longiores. 
_ 1. M. wrecrironsa, Steud. Bolivaria integrifolia, Cham. & 
Schlecht., Linnea, 1. p. 207, t. 4, f.1; Hook. § Arn., Jour. 
Bot., 1, p. 284; DC. Prodr., 8, p. 315. Buenos Ayres. | 
_ 2. M. ratrma, Steud. Bolivaria trifida, Cham. § Schlecht., 
Le; Hook. § Arn., l.c.; DC.\.c. Buenos Ayres, Mendoza. 
* Lobi calycis triangulares tubo subduplo breviores. , - 
3? M. rosusra. Bolivaria robusta, Benth. in Lond. Jour. 
Bot., 5, p. 190, t. 5. Patagonia.—Ovarii loculi dicitur biovalati ! 
§$ 2. Menopona, Humb. § Bonpl.—Calyx 10-14-lobus, ra- 
rius 7—9-lobus ; lobis linearibus setaceisve tubo corolla breviter 
infundibuliformis vel subrotate (fauce pl. m. barbate, limbo 
5-partito, lobis obovatis oblongisve vix mucronulatis) longiores. _ 
ilamenta filiformia; antheris muticis. } 
SUS at 4 
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