13 
and Castilleja, which spreads from the same country into South Ame- 
rica and North Asia, have both of them the peculiar form of anthers 
not unaptly compared by Nuttall to the Greek X, and given by him 
as the chief character of Orthocarpus. They differ in the calyx, and 
especially in the form of the corolla. Schwalbea, very near Castilleja, 
again differs in the calyx, as well as in the equality of the lobes of the 
anthers. 
Lamourouxia (excluding L. bartsioides, Hook, which is a Bartsia) 
and Cymbaria, are perfectly distinct and easily characterised genera. 
Odontites, Euphrasia, Pedicularis, Rhinanthus, Elephas and Melam- 
6. O. DENsiFLORUS, glabriusculus, ramosissimus, foliis apice trifidis laciniis 
linearibus, spicis densis imbricatis (flavescentibus), laciniis calycinis lineari-subu- 
latis subcoloratis corollae pubescentis tubum aequantibus, staminibus galea brevio- 
ribus. — California, Douglas. 
7. O. purpurascens, ramosissimus, piloso-birtus, foliis pinnato-multifidis 
laciniis linearibus divaricatis, spicis densis imbricatis (purpurascentibus), laciniis 
calycinis bractearumque lineari-spathulatis apice coloratis coroUze pubescentis 
tubum aequantibus, — California, Douglas. 
8. O. HisPiDUs, subramosus, piloso-hispidus, foliis et basi lanceolate longe 
subtrifidis laciniis lineari-subulatis, floribus distantibus, bracteis viridibus, corollas 
superantibus, calycis dentibus lineari setacels viridibus corollae (flavescentis) tubo 
glabro brevioribus. Ad ripos. — FI. Columbia, Douglas. 
Species 7 praecedentes (2-8) tenues sunt et semipedales vel vix pedales, 5 sequentes 
(9-l3) duri, litbospermoidei, ultrapedales. 
9. O. STRICT us, caule duro bispido, foliis lanceolatis integris trifidisve, floribus 
distantibus longe spicatis, bracteis divaricate-trifidis laciniis longe lanceolatis co- 
rollas superantibus, dentibus calycinis lanceolatis brevissimis viridibus, corollis 
(luteis) glabrls, tubo longe exserto. — Ad. flum. Columbia et Red River, Douglas. 
10. O. LUTEUs (Nutt. Gen. FI. N. Amer. S. 57.) Ad Missouri, Nuttall. 
11. O. BRACTEOSus, caule duro pubescente, foliis lanceolatis apice lineari-tri- 
fidis, floribus spicatis, bracteis latis divaricato-trifidis rigid is, dentibus calycinis lan- 
ceolatis rigidis viridibus corollae (purpurascentis ?) tubo brevioribus. — Ad flum. 
Columbia, Douglas. 
12. O. LiTHosPERMOiDEs, erectus, durus, ramosus, basi pubescens, apice bis- 
pldus, foliis trinervils apice inferioribus integris superioribus 3-5-fidis laciniis 
lanceolatis, spicis densis flavescentibus bispidis, dentibus calycinis lanceolato-Iinea- 
ribus flavescentibus bispidis tubo corollae glabriusculo brevioribus. — California, 
Douglas. 
13. O. CASTiLLEJOiDES, bumills, pilosiuscula, foliis oblongis superioribus cu- 
neatis breviter trifidis, floribus laxe spicatis, calyclbus tubulosis dentibus brevibus 
viridibus, corollae (purpurascentis) tubo breviter exserto. — California, Douglas. 
The Castilleja laciniuta, Hook, et Arn. Bot. of Beecb. Voy. 40, bas tbe calyx 
of ’Orthocarpus, and tbe corolla intermediate between tbat of tbe two genera. It 
might perhaps, therefore, be better referred to Orthocarpus, near to the O. his- 
pidus. 
There are several Castillejcc in IMr. Douglas’s Californian collection, most of 
them nearly allied to C. lithospermifolia, coccinea, pallida, &c. which require a very 
detailed diagnosis to distinguish them ; tbe following is, however, so verj' distinct 
that I subjoin its character. 
C. MACROCARPA, erecta, ramosa, caule piloso, foliis brevibus ovato-oblongis, 
integris, trinerviis, basi amplexicaulibus, superioribus obtuse trifidis cuneatis, flora- 
libus apice latis coloratis, calycibus brevissime et obtuse 4-fidis hinc fissis, corollae 
' tubo incluso, galea breviter exserta. — California, Douglas. 
