Nova genera et species II. 391 



1,5 mm. sensim accrescentes , summae lineares acuminatae usque 7 mm. longae, 

 0,7 1 mm. latae, omnes cartilagineae, dorso iiifero plerumque parce et 

 longiuscule pilosae, sordide v. viridi-stramineae ad apicem saepe rubescentes, 

 nervo medio panim v. non prominente. Eeceptaculum convexum glabrum. 

 Pappi squamae exteriores ca. 20 inaequales planae, niargine obsolete v. 

 manifeste denticulatae, setae interiores 24 36, 5,5 mm. longae spinuligerae. 

 Corollae inferne anguste C3'lindraceae, a medio in limbum usque ad basin 

 5-sectum dilatatae; lobi lineares aeuminati. Stamina ad basin limbi corollae 

 inserta; antherae fere 2,5 mm. longae, basi bidentatae, apice in ligulam an- 

 guste lanceolatam loculis 3 4-plo breviorem productae. Styli in parte 

 Y- superiore bicrures, ramis scabriusculis apice attenuatis. Achaenia pal- 

 lide brunescentia, oblonge -linearia, pilis albidis. 



Hab. in Portorico in Sierra de Jimcos in graminosis apricis 

 montis Guvuy, prope Utuado ad margines sylvarum ad Paso Palma, 

 prope Lares in fruticetis ad Jobo et ad margines sylvarum ad Anon, 

 prope Maricao ad margines sylvarum, prope Mayagez 160 m. alt, m. 

 Nov. Mart. fl. et fr.: Heller n. 4391, Sintenis n. 388, 2659, 5884, 

 6079, 6362. 



Var. . Stalilii Urb. foliis non impresso -punctatis; achaeniis glabris 

 subglabrisve, vix 1 mm. superantibus. 



Vernonia arborescens Sw. var. Lessingiana Stahl I Est. V (1887) 

 p. 103 (p-p-), non Qt'iseb. 



Hab. in Portorico prope Bayamou, 500 m. alt: Stahl n. 238, 

 667, prope Aybonito in declivibus m. Nov. fl.: Sintenis n. 2862. 



Obs. I. Ex affinitate V. Berteroanae DC. 



Obs. IL Baccharis myrsinites Griseb.! Flor. (1861) p. 366 est Vernonia 

 acuminata Less. : specimen Macnabianum typum, Purdieanum varietatem sistit 

 quoad e statu valde juvenili dijudicari potest. Vera B. myrsinites (Lam.) 

 Pars. Hispaniolam inbabitat, ex affinitate arcta B. halimifoliae L. 



Eupatorium l)ahaineiise Urb. (n. sp.) ramis hornotinis pilis bre- 

 vissimis plus minus sursum curvatis dense vestitis; foliis 12 5 mm. 

 longe petiolatis, anguste ovatis, ovato-oblongis v. oblongis, basi anguste 

 cuneatim in petiolum protractis, infra medium latissimis, superne sensim 

 angustatis, apice rotundatis v. obtusis, 6 2 cm. longis, 2 0,6 cm. latis, 

 margine anguste recurvo v. revoluto integris, rarissime hinc illinc parce 

 V. crebrins denticulatis, penninervibus, sed pari nervorum supra basin 

 cuneatam magis arduo v. sublongitrorso. chartaceis v. chartaceo-coriaceis, 

 utrinque glabris v. subtus minute pilosulis; inflorescentiis corymbosis; 

 capitulis usque 6 mm. longe pedimculatis v. plerumque in apice ramo- 

 rum 2 3-nfttim sessilibus v. subsessilibus, 6 12-floris; involucri 

 squamis solemniter imbricatis, 5 6-seriatis, dorso 3-nervibus, apice 

 plus minus incurvo rotundatis v. intimis obtusis; corollis 4 4,5 mm. 

 longis, lobis tubo 5 6-plo brevioribus; ovario 3,5 mm. longo, ad costas 

 minute scabrido. 



