ROBINSON. —- JAEGERIA AND RUSSELIA. 319 
* * « Heads small, discoid: branched pubescent annual: Galapagos Islands. 
9. J. @ractixis, Hook. f. 1. ¢. 213. — Charles Island, Darwin. 
Doubtful species. 
J. BELLIDIOIDES, Spreng. Syst. iii. 591, of Uruguay, is unrecognized 
and probably, like nearly all of the other species referred by Sprengel 
to Jaegeria, belongs to some other genus. 
Tue Genus RUSSELIA. 
Considerable recently acquired material of Russelia seems to show 
Bentham’s extreme reduction of the species ill-advised. At least a 
dozen may be recognized with advantage. The following provisional 
key may prove of assistance in identifying the members of ~ confused 
genus. 
* Stems and branches sharply 4-angled, the go bearing ciliated wings: pe- 
duncles opposite, axillary, solitary. 
1. R. avata, Cham. & Schlecht. Linnaea, iii. 3 (1828) ; Schmidt in 
Mart. Fl. Bras. viii. pt. 1, 269, t. 44, f£. IL. — Tropical Brazil, Sedlow 
& Riedel. 
* * Stems and branches sharply angled not winged; the angles prominent, often 
thickened ; the intervening areas flat or concave. 
+ Juncoid, excessively branched: peduncles filiform, 1-2 (-3)-flowered, much ex- 
ceeding the subtending bracts. 
2. R. eQuisetirorMis, Schlecht. & Cham. Linnaea, vi. 377 (1831). 
R. juncea, Zucc. Flora, 1832, Il. Beibl. 99 (1832), is only a large 
flowered form of this species. The type of R. equisetiformis has been 
examined by Mr. J. M. Greenman in Berlin and proves to have corollas 
which vary from 1 to 2 em. in length, thus invalidating the chief dis- 
tinction between the species, a fact “alas noted by Dr. Loesener, Bull. 
Boiss. ii. 562. 
*— + Peduncles short, the primary ones never equalling the subtending leaf-like 
bracts, usually several-many-flowere 
++ Leaves entire, subcoriaceous, lucid. 
_ 3. R. supcortacea, Robinson & Seaton, Proc. Am. Acad. xxviii. 
113. — Tamasopo Cafion, San Luis Potosi, Mexico, Pringle, no. 5086. 
aves serrate: calyx-lobes i ye — attenuate, not at 
all subulate at the tip: flowers 2 to 2.4 cm. 
R.jaliscensis. Copiously asad : stems and branches sharply 
