12 
that this extensive genus, now in a great state of confusion as to 
species, should have been deprived, by the death of the last-men' 
tioned Botanist,' of the result of his valuable labours. 
The next tribe, the Gerardieae, nearly connected with Rhinan- 
thesB, in the structure of the anthers and of the seeds, contains seve- 
ral genera, w^hich form connecting links wdth the Veroniceae, the Sal- 
piglossideae, Digitaleae, and Gratioleae. Escobedia and Physocalyx 
have in particular much analogy to Franciscea and Brunsfelsia. 
Virgularia, Macranthera, and Gerardiamay require some modifica- 
tion in character as to the American species, but I have not a suffi- 
cient number before me to enter at present into tbe comparative 
merits of the different views entertained by Humboldt and Kunth, 
(Nov. Gen. et Sp. Amer. vol. 2.) Martius (Nov. Gen. et Sp. 
Bras. 3. 5.) and Cbamisso and Schlechtendal (Linnaea, 3. 12. and 
8. 24.). The East Indian species are all true Gerardiae. 
Of Seymeria, which is very near Gerardia, 1 have only the fruit. 
Glossostylis is a very singular genus, the three species, although 
coming from three such different parts of the world, are scarcely 
distinguishable from each other. In all, the corolla (as far as can be 
judged from dried specimens) may be assimilated to an Elephas 
without the upper proboscidal lip. Centranthera, so very near Cas- 
tilleja in many respects, has entirely the corolla and stamina of the 
Gerardieee. 
The Rhinanthese, often considered as a separate order, are, how- 
ever, too closely allied to Gerardiese to be otherwise distinguished 
than as a section of the same order ; and, indeed, the only charac- 
ter constant in all the genera is the galeate, or compressed form 
of the upper lip of the corolla. The embryo is orthotropous in 
several Bartsise and some others, and the three genera forming the first 
group have not the anthers of the remainder. 
Orthocarpus,' consisting of 13 North-West American species,* 
*1. O. PUSiLLUS, humilis, ramosissima, glabriuscula, follis apice multifidig 
lacinlis divaricatis setaceis, dentibus calycinis linearibus viridibus corollam subae- 
quantibus. — California, Douglas. — Vix !2-pollicaris. 
2. O. GRACILIS, caulibus numerosis subramosissimis apice pubescentibus, foliis 
apice multifidis laciniis divaricatis lineari-subulatis, dentibus calycinis lanceolato- 
subulatis acntlssimls vix coloratis, corollae (purpurascentis ?) tubo exserto pubes- 
cente, staminibus galea brevioribus. — California, Douglas. 
3. O. FLORIBUNDUS, glabriusculus, ramosissiraus, foliis apice pinnatifidis laci- 
niis linearibus divaricatis, dentibus calycinis linearibus viridibus, corollae (luteae) 
tubo subexserto glabro, antheris exsertis, — California, Douglas. 
4. O. ERiANTHA, basi pubescens, apice toraentosus, ramosissiraus, foliis apice 
multifidis laciniis lineari-setaceis divaricatis, calycibus tomentosis dentibus lanceo- 
latis acutissimls viridibus, corollae (luteae) tubo longe exserto tomentoso, antheris 
galea brevioribus. — California, Douglas. 
5. O? TEXUiFOLius, piloso -pubescens, foliis 3-5- fidis laciniis lineari-subulatis, 
floribus dense spicatis floralibus latlssirais incisis, dentibus calycinis brevibus subu- 
latls, — Bartsia temiifolia, Pursh FI. Amer. Bor. 2. 429. An Castilleja ? Co- 
rollae in exemplare suppetente mancae. — America boreali-occidentalis, Douglas. 
