COMPOSITE. 185 
15. Encelia (?Simsia) sericea, Hemsley, n. sp. 
Foliis ovato-lanceolatis subtus sericeo-tomentosis argenteis, floribus flavis, paleis puberulis sursum 
'  eoloratis, acheniis 2- rarius 3-aristatis appresse hirsutis. | 
Herba?, ramis teretibus, parce purpuraceo-puberulis. Folia opposita vel superiora tantum alterna, — 
-_ breviter petiolata, crassiuscula, ovato-lanceolata, 14-2-pollicaria, remote obscureque calloso- 
serrulata, acutiuscula, subtrinervia, supra densissime strigilloso-hirsuta, subtus densissime 
sericeo-tomentosa, argentea. Capitula pauca, corymbosa, vix 1 poll. diametro, homochroma, 
flava ; pedunculi breves ; involucri bracteze hirsutz, 2-3-seriate, lineari-lanceolate, acutz, exte- 
riores breviores; receptaculum parvum, convexum; pale scarioso-herbaces, complicate, 
integre, acutissimz, extus puberule, sursum coloratz, flores equantes vel paullo excedentes ; 
ligule ad 7, late, neutre; corolle disci infundibuliformes (basi tantum anguste), puberule. 
Achenia appresse hirsuta, maximam partem compressa, 2-aristata, angulis ciliatis, nonnulla 
(exteriora disci?) 3-aristata, 3-angulata; pappi aristze subsequales, pilosule, corollis dimidio 
breviores. . 
GuateMaLa, Motagua valley (Salvin & Godman, 133). Hb. Kew. 
16. Encelia sanguinea, Hemsley. 
Simsia sanguinea, A. Gr. Pl. Wright. i. p. 107. | 
Sourn Mexico, Mirador, Consoquitla (Liebmann, 492 ; Linden, 1146), Cordillera of 
Oaxaca, 5000 to 7000 feet (Galeotti, 2092). Hb. Kew. 
17. Encelia subaristata, A. Gr. in litt. 
Simsia subaristata, A. Gr. Pl. Fendl. p. 84. 
Nort Mexico, Bishop’s Hill, near Monterey (Gregg). 
126. HELIANTHELLA. 
Helianthella, Torr. & Gr. Fl. N. Amer. ii: p. 333; Benth. et Hook. Gen. Plant. i. p. 378. 
Besides the following, there are six or seven North-American species; they are her- 
baceous plants. 
1. Helianthella mexicana, A. Gr. in Proc. Amer. Acad. xv. p. 37. 
Norta Mexico, valley of San Luis Potosi (Parry & Palmer, 463). Hb. Kew. 
127, ACTINOMERIS. 
Actinomeris, Nutt. Gen. Pl. N. Amer. ii. p. 181; Benth. et Hook. Gen. Plant. ii. p. 379. 
About ten herbaceous species, confined to North America, including Mexico. 
1. Actinomeris longifolia, A. Gr. Pl. Wright. ii. p. 89. 
Norta Mexico, Sonora (Wright). Hb. Kew. 
9. Actinomeris ovata, Nutt. Gen. Am. ii. p. 181 in adnot (nomen tantum). 
Coreopsis ovata, Cav. Ic. iii. p. 41, t. 280 (descr. infra amplif.). 
Caulibus late alatis, foliis alternis decurrentibus ovato-oblongis, capitulis densiuscule corymbosis, 
:nvolucri bracteis coriaceo-herbaceis, interioribus paleisque calloso-acuminatis, corollis pilosulis, 
acheniis breviter 2—1-aristatis nonnullis muticis. 
BIOL. CENT.-AMER., Bot. Vol. II., June 1881. 26 
