290 CATALOGUE OF MR. GEYER'S PLANTS 
calyces, with shorter segments; but so variable is this species and its 
allies, that I dare not venture to consider the two distinct. 
2. Phlox Sibirica, Gmel.— Hook. Fl. Bor. Am. vol. ii. p. 73. 
Has. Drift sand-hills of Lower Platte, with ** Psoralea tenuifolia " 
. and * Rumex venosus.” Flowers always white. June. ». 88. This 
quite agrees with my specimens from Nuttall, collected in the Rocky 
Mountains of the Platte. 
1. Gilia (Leptodactylon, Hook.) Hookeri, Benth. in De Cand. Prodr. 
vol. ix. p. 316.—Phlox Hookeri, Dougl. in Hook. Fl. Bor. Am. vol. 
ii. p. 73. t. 159. 
Has. Elevated stony plains, Missouri and Oregon territories. A small 
` depressed evergreen shrub, 1 foot high. Corolla white. July. 
n. 480. 
2. Gilia (Eugilia, B.) inconspicua, Dougl. in Hook. Bot. Mag. t. 2833. 
Hook. Fl. Bor. Am. vol. ii. p.74. Ipomopsis, Si. 
Has. Gravelly banks of Upper Platte River. Corolla varying from 
reddish-blue to white. J uly. ». 42 and 25. 
3. Gilia (Eugilia) spicata, Nutt. MS. ; caule erecto simpliei basi pilo- 
sulo superne viscido-pubescente, foliis caulinis anguste linearibus 
simplicibus trifidisque glabriusculis, floribus dense capitatis, capitulis 
breviter pedunculatis axillaribus longe virgato-thyrsoideis, bracteis 
linearibus, corollæ tubo calycem æquante. Benth. 
Hap. Scott’s Bluffs, Platte, Nuttall, in Herb. Hook. Rocky Mountains, 
Fremont, in Herb. Benth. Sunny but moist gravelly banks of 
Horse River of the Upper Platte, within the Black Hills, Geyer, 
n. 51. 
Planta biennis videtur. Caulis crassiusculis, pedalis, a medio ad apicem 
florifer. Folia radicalia desunt; caulina 1-1j-pollicaria, pilis paucis . 
crispulis conspersa, utrinque lacinia brevi lineari aucta v. rarius in- 
tegra, floralia breviora, pleraque simplicia.  Peduncuti inferiores 
3—6 lin. longi, viscoso-pubescentes, superiores breviores v. subnulli. 
Capitula densa, 6—8 lin. diametro. Calyces viscosi, 24 lin. longi, 
bractea eos æquante suffulti, laciniis acutis sed non mucronatis. 
Corolle laeinis 14 lin. longe. Anthere ad faucem filamento bre- 
vissimo inserte. Ovula in loculis ovarii 6. Benth. 
4. Gilia (Eugilia ? ) iseridifolia, sp. n.; humilis erecta ramosa, caule 
 Canescenti-pilosula, foliis profunde pinnatifidis pinnatisectisve seg- 
mentis anguste linearibus integris glabratis, cymis multifloris dense 
