398 CEA  LXXXVIIL | COMPOSITAE. [ Helenioidecs. 
Species 1, a nobis non visa. DC. Prod. v. 668. ' Genus a Lessingio stabilitum ad plantam in horto 
Berolinensi eultam, quz Mexici indigena esse dicebatur. An Zymenotrici affinis ? 
453. Laphamia, 4. Gr. Pl. Wright. i..99, t. 9.—Capitula heterogama, radiata, 
floribus radii 9 1-seriatis fliseique U fertilibus, y. radio deficiente homogama, — Inyolu- 
E 
crum campanulatum v. sub pheericum, bracteis 1-2-seriatis linearibus herbaceis sub- 
zequalibus sepius carinatis at flores non foventibus. Receptaculum convexum, nudum. 
Corolle 9 ligulat, lamina angusta patente 3-dentata; O regulares, tubuloss, limbo 
parum ampliato apice breviter 4-fido. Anther:e basi auriculis parvis acuminatis sagittatce. 
Styli fl. 0 rami appendicibus subulatis hirtis superati. Achznia oblonga, a latere 
compressa, margine cartilagineo v. ciliato cincta, aristis 1-2 cum ciliis intermediis v. 
aristis co coronata v. calva.—Suffrutices humiles pubescentes scpe canescentes, caudice. 
lignoso ramoso, eaulibus brevibus herbaceis ramosis. 'Folia opposita v. superiora alterna, 
petiolata, angusta v. suborbiculata, dentata v. incisa. Capitula parvula v. mediocria, 
solitaria v. corymbosa. ^ Corolle flavee ?  Achzenia glabra v. vix pilosula. 
Species ad 12, regionis Mexican: incole. JWalp..4nm. v. 189, inclusis etiam Perityle Parryi, A, Gr., 
et P. aglossa, A. Gr., Walp. Aun. v. 185, P. nuda, Torr., et P. Emorgyi, Torr. Bot. Emor, Rep. 142 ; 
Bot. Emor. Exped. 82. 
Moxornnuix, Torr. in. Stansb, Utah Exped. 389, t. 7, Walp. Ann. v. 210, est L. Stansburyi, A. Gr., 
species L. rupesiri simillima sed pappo ad setam unicam reducto, 
454. Perityle, Benth. Bot. Sulph. 23, t. 15 (quoad stylum. male). —Capitula heterogama, 
radiata, floribus radii 9 1-seriatis discique 0) fertilibus v. intimis sterilibus. — Inyolucri 
campanulati bractes 1-seriatze, subsequales, concavo-carinatz, flores radii foventes v. 
amplectentes. ^ Receptaculum convexum v. conicum, nudum.  Corolle 9. ligulatz, 
lamina parva patente integra v. 2-3-dentata ; ó regulares, tubuloss, limbo ampliato 
subeampanulato apice 4-fido. Antherw basi subintegre. Styli fl. P rami lineares, apice 
obtusi. Achsnia a latere: compressa, ovato-oblonga, margine cartilagineo cincta, pappo 
breviter eupulato lacero coronata additis interdum aristulis 2 parvis liberis.—Herbo»e 
annus, viscido-pilosule v. glabratsz. Folia opposita vy. superiora alterna, petiolata, 
grosse dentata. | Capitula parvula, ad apices ramorum v. in axillis summis pedunculata. 
Corollz radii albze ?  Achzenia nigra, glabra. 
Species 2 (v. unius varietates ?), Californiese. —Walp. Hep. vi. 125; Ann. v. 185 (exclusis sp. 2 ad 
Laphaimiam referendis). Torr. Bot. WAhipple Exped. 44. 
45b. Oxypappus, Benth. Bot. Sulph. 118, t. 42.—Capitula heterogama, radiata, 
floribus radii 9 1-seriatis discique  fertilibus. Involucrum campanulatum, bracteis 
l-seriatis linearibus herbaceis carinatis süb:equalibus. Receptaculum convexum v. 
demum conieum, nudum. Corolle 9 ligulats, lamina patente apice minute 3-dentata ; 
i$ regulares, tubulos:, limbo parum ampliato elongato apice 5-dentato. XAnthere basi 
obtuse integre. Styli fl. rami lineares, in appendices angustas acutas desinentes. 
Achznia linearia, apice attenuata, 4—5-gona, aristis b v. in radio 3 basi breviter paleaceo- 
dilatatis coronata.— Herba annua (v. perennis?), pubescens v. basi hirta, caulibus 
gracilibus ramosis. Foliaradicalia v. inferiora approximata opposita, dentata, caulina per 
paria remota v. summa alterna. Capitula parva, longe peduneulata, laxe: paniculata. 
Corollz flavs. ^ Achgnia parce pilosa. 
Species 1, Mexieana. Walp. Hep. vi. 178. A Schultzio Bipontino ad Pectidez refertur, sed uta 
dularum absentia, styli indole, ezterisque characteribus longe recedit. 
456. Burrietia, DC. Prod. v. 663, pro parte.—Oapitula heterogama, radiata, floribus 
radii 9 paueis discique :j fertilibus. lInvolucrum oblongum, bracteis paucis: sub- 
:xqualibus tenuiter herbaceis. Receptaculum lineare, elongatum. - Corolle 9 ligulatz, 
lamina parva subpatente; ij regulares, tubo tenui, limbo campanulato apice 5-fido. 
Antherz basi subintegrs. Styli fl. $ rami lineares, in appendices acutàs desinentes. 
Achmnia anguste linearia, basi attenuata, D-costata, disci aristis 4-5 rigidulis coronata, 
