﻿CHARACTERS OF ANCISTROPHORA. 457 



section of an expanded flower. 5. An ovule. 6. Hair-like processes of the funiculus, which compose the 

 arillus ? 7. A fruit, of the natural size. 8. Vertical section of a fruit, showing the seeds, &c. 9. The fili- 

 form sutural placenta detached, with one of the seeds hanging from its summit. 10. Vertical section of a 

 seed. 11. One of the threads of the arillus. 12. Its extremity, much more magnified, lo, 14. The embryo 

 detached, in two different positions. 15. Section of the stalk or stem above ground. IG. Transverse section 

 of one of the woody bundles of the stalk, much magnified. 17. Section of the subterranean rhizoma. — All 

 the analyses, except Fig. 7, more or less magnified. 



XI. 



Characters o/'Ancistrophora, a New Genus of the Order Composite, recently detected hi/ 

 Charles Wright, Esq. in the Eastern Part of Cuba. 



By ASA GRAY, M. D. 



(Bead April 12, 1859.) 



ANCISTROPHORA, Nov. Gen. 



Capitulum multiflorum, heterogamum ; floribus homochromis, radii 8-10 ligulatis foemineis, disci tubulosis 

 hermaphroditis. Involucrum disci brevius ; squamis a;quahbus bi-triseriatis, exterioribus herbaceis oblongis 

 obtusis, intimis angustioribus receptaculi paleas referentibus. Receptaculum convexum, paleatum; paleis 

 linearibus fere membranaceis planis persistentibus achenia asquantibus. Ligulse oblongae, tubulo brevissimo. 

 CorollEe disci e tube brevi campanulato-ampMata?, 4-dentata;. Anthera; breves, ecaudate. Styli rami fl. herm. 

 subplani, appendice triangulari acuta hispidula superati. Achenia conformia, late obovata, compresso-plana, 

 margine calloso crasso (nunc subalato) cincta, apice hinc uniaristata ; arista achenio longiore persistente la^vi 

 apice arete uncata. — Herba pusilla, acaulis, hirtella, Bellidis sen Lagenoph.or<B facie, sed floribus aureis. 

 (Nomen ex SyKia-Tpov, hamics, et (j)£pa, fero, ob achenium hamigerum, dicatum.) 



Ancistrophora Wrightii. In montosis Cubce orientali, prope " 3Ionte Verde" saxatilis. — Radix annua ? 

 Folia rosulata, obovata, subintegerrima, pilis articulatis conspersa, membranacea. Scapi plurimi, bi-tri- 

 pollicares, nudi, monocephali. Capitulum sesquilineam latum. Ligulaj breviter exsertaj. Squamae et palese 

 demum, fructu delapso, reflexa;. Achenia vix f lin. longa, parce hispidula, facie utraque leviter unicostata, 

 margine calloso-incrassato, ad apicem latere interiore aristam arete hamatam corolla disci subajquilongam, 

 exteriore aristellam brevissimam sxpius evanidam, gerentia. 



