298 BULLETIN DE l'herbier BOISSIER (^i»» sér.). ('38) 



Var. fûliosa phyllis involucris exterioribus spathulalis sat magnis. 



Suffrutex 0,2-0,4, petala violacea, in arenosis p. Vaquerios (lapibuy, Aug., 

 4378. 



Vertionia Ungua nov. spee. 



r.aulis ereclus robustus basi ad o mm. erassus, supra 3 mm., profunde 10-sul- 

 catus subscaber, pauciraniosus, ramis erectis, glaber, oculo armato verrucis 

 acutis erectis brevissimis scabriusculus, ad 1 m. altus vel altior ; folia oblonga 

 subcoriacea, superiora oblongo-linearia vel linearia, marginibus auguste revo- 

 lutis, in inferioribus patentibus et minute remoteque denticuiatis, subtus iucons- 

 picue glandulosa 200/38, 180/24, 200/17, 230/19, 200/5 mm. ultima minora, basi 

 laie adnata et decurrentia giaberrima, nervo medio robusto solum conspicuo ; 

 inflorescentia paniculate subscorpioidea haud ampla, capitulis fero omnibus 

 sessilibus, ramis dorsiventralibus capitula 3-10 approximata ferentibus ; invo- 

 lucrum lalum phyllis junioribus tenuibus ce. 18, nibescentibus, ce. 3 seriatis, 

 oblongis, obtusiuseulis vel interioribus iuterdiim apiculatis, margine et apiee 

 pallidioribus, dorso maculis irregularibus nigris tenuibus et glandulis sessilibus 

 nitentibus eonspersis; capitula paiilo latiora quam longa (11/10 mm.), ce. 20- 

 23 flora; aehaînia leviter eostata in costis pilis brevibus erectis pilosa, in valle- 

 culis glandulis numerosis nitentibus conspersa. 



Fleurs roses, dans les campos un peu humides. Avril, 786, Balansa. HB. D(7.. 



Vernonia hexantha. 



Var. Ba /an sa? nob., paiiicula amplissima, corymbosa, subsordida, foliis longis 

 lanceolatis vel obloiigo-lanceolalis sensim apicem versus atlenuatis marginibus 

 ut videtur plicato-sub.serratis. 



Fleurs d'un blanc rosé, Caaguazu, dans les campos, 13 Nov. 1874, 921. 



Hœc species sa3pe est confusa cum V. megapotamica Spr. a qua involucro haud 

 .squarroso sed phyllis adpressis sat differt. 



Hue pertinet verisimiliter V. megapolamica var. eriocephala Malme, Die 

 Composit. der 1. Regnell'schen Exped. in k. Svensk. Vetensk-Akad. Handt., 23, 

 tab. I, 1, cujus involucra haud squarrosa simillima sunt V. hexanthœ S. Bip. 



Veinonia hexantha Schuitz, Bip. 



Mss.; Baker I. c, VI, ii, 27. 



Var. paraguariennis nob., foliis latioribus ellipticis, panicula minus ampla. 



Suffrutex 0,5-0,8, corolla violacea, in campo p. Igalimi, Nov., 5443. 



Var. eleagnoides nob., foliis oblongis haud acuminatis, angustis, pauiculae 

 ramis divaricalis, inflorescentia foliosa, 



Suffrutex 0,5-1 m., corolla violacea, in dumoto p. f. .lejui-guazu, Dec., 3729. 



Vernonia Hystrix nov. spec. 



SulTrLitf'x O.rj-l m. caulibus simplicibus(?), slriatis 3 iiiiii. erassis, glabros- 

 i-cntibiis; folia numerosa linearia sessilia acuta basi rotundala haud angustata, 

 supra iiitida, lenuissiine et crebre sub lente albo-argenleo piuictulata marginibus 

 valde revolulis, subtus pilis longis lenuiter niveo lanata, nervo medio supra 

 impresso subtus exscul|)lo glabro saepe solum visibile, 80/3, 60/2,6, 70/2,5, 

 40/2,2 mm. ; inflorescentia spiciformis densa 15/2 cm., 5/2 cm. ; glouiehili 

 capitulorum vel capitula singula axillaria sessilia, inferiora inlerdum subvor- 

 ticillala vel alterna hracteis foliaceis linearibus duplo vel triplo superala, bracteis 

 patentibus versus apicem sensim decro.scentibus; capitula ovata vel oblonga ad 

 lU-12 liim. longa, involucro ad 4 mm. lato, phyllis 4-5 seriatis, imbricatis ovatis 

 siiliscariosis vol ex viridi purpurasceritihus in acumen spiiios\im ce. 2 mm. 

 lotigum prolongatis s{|uarroso ; flores 0-7 violacei, ovario iiiloso, pap|)(i apice 

 sordide albido. 



