84: PLANTJE WEIGHTIAN^. V. 



name can only be retained for the section with linear leaves. (Vide Kew Jour. 

 Bot.Z. p. 22b.)* 



249. B. PARVULA (sp. nov.) : scabrella ; caulibus spitham^is gracilibus e basi suf- 

 fruticosa plurimis adscendentibus ; foliis plerisque oppositis oblongo-ovatis basi 



* BRICKELLIA, Ell. Sk. 2. p. 290. (Clavigera &, Bulbostylis, DC.) 



Capitulum pluri-multiflorum. Involucrum imbricatum, squamis striatis. Eeceptaculum nudum pla- 

 num. CoroUse cylindriccB (albidae vel ochroleucBe), limbo baud ampliato, dentibus brevissimis. Stylus 

 basi buibosus. Achenia cylindrica 10-striata. Pappus capillaris, setis subplumosis barbellatis vel serru- 

 latis. — Genus ab Eupatorio acheniis multistriatis nee pentagonis, a Kuhnia pappo non plumoso, prasser- 

 tim distinctum. 



The following species are more or less known to me : — 



<§ 1. Clavigera, DC. — Involucrum 4- 12-florum. Caules virgati foliosissimi, foliis linearibus alternis. 



* Folia integerrima, marginibus revolutis : involucri squama oMuscb. 



1. B. COEYMBOSA. — Clavigera corymbosa, DC. C. scabra, Benth. PI. Harlw. p. 19. Mexico. 



2. B. scoPAKiA. — Clavigera scoparia, DC. Prodr. 5. p. 128 ; Deless. Ic. Sel. 4. t. 12. Mexico. 

 * * Folia acerosa, supra canaliculata, integerrima ; involucri squama ohtusa, minus striata. 



3. B. PINIFOLIA. —Clavigera pinifolia, Gardn. in Lond. Jour. Bot. 5. p. 461. Brazil, Gardner. 



* * * Folia pungentia spinuloso-dentata : involucri squama acuta. 



4. B. spiNULOSA. — Clavigera spinulosa. Gray, PL Fendl. p. 63, adnot. Mexico (Chihuahua), Gregg. 

 § 2. Bulbostylis, DC. — Involucrum pluri-multiflorum. Folia praesertim inferiora seepius opposita. 



* Folia arete sessilia vel amplexicaulia : capitula 10 - 20-Jlora, subracemosa : involucrum pauciseriale. 



5. B. WisLizENi, Gray, PI. Fendl. p. 64. Northern Mexico, Wislizenus. A variety apparently of this 

 species was gathered by Seemann, at Cerro de Pinal, Western Mexico. 



* * Folia sulsessilia seu brevissime petiolala, haud cordata. 

 -1- Folia rigido-coriacea, valde reticulata, fere omnia opposita : pedunculi axillares et terminales nudi. 



6. B. LANATA, DC! Prodr. 1. p. 268. B. rigida, Hook. <f- Am..' Bot. Beech, p. 297. — Capitula 

 magna, plusquam 30-flora : involucrum multiseriale. Mexico, Mendez ! Beechey ! Coulter ! (No. 237, 

 Bolanos.) — Coulter's plant agrees with the specimens described by De Candolle, having subpetioled 

 leaves ; but the plant gathered in Beechey's voyage has the leaves sessile by a subcordate base. There is 

 no further difference. In all of them the white wool disappears from the upper surface. 



7. B. KETicuLATA, DC. Mexico, Hanke. — This I have barely seen in the herbarium of De Candolle. 

 It is possibly the same as the next, which, however, has narrow serrated leaves, and naked inflorescence. 



8. B. OLIGANTHES : cinereo-pubescens; caulibus gracilibus erectis ; foliis ellipticis seu lineari-oblongis 

 utrinque obtusis valde reticulatis brevissime petiolatis supra glabratis scabris a medio ad apicem rariter ser- 

 ratis ; capitulis pauciusculis in ramos graciles subnudos virgato-paniculatls ssepius remotis ; involucre tur- 

 binate 10-12-floro; squamis extimis ovatis lanoso-ciliatis, intimis hnearibus acutis ; acheniis sericeis ; 

 pappo scabro. — Eupatorium ohganthes. Less.! in Linnaa, 4. p. 137. Bulbostylis oliganthes, DC. 

 Prodr. 5. p. 139. — Mexico, Scheide (v. sp. in herb. Par.), Seemann: and if I rightly recollect. No. 2306 

 and No. 1152 of Galeotti's collection also belong here. Heads 5 or 6 lines long. 



-I- H- Folia haud coriacea, alterna. 

 9. B. OBLONGIFOLIA, Nutt. Oregon. 



10. B. RiDDELLii. Vide supra, p. 83. Texas. 



11. B. BRACHYPHYLLA. — Clavigera brachyphylla. Gray, PI. Fendl. p. 63. New Mexico. 



-1- -K -(- Folia haud coriacea, plerumque opposita. 



12. B. PARTULA. Vide supra. New Mexico. 



13. B. CYLiNDRACEA, Gray, PI. Lindh. 2. p. 218. Texas. 



# * * Folia petiolala: rami foliosi : capitula 9-30-Jlora, axillaria seu paniculalo- vel racemoso- 



thyrsoidea : involucrum pluriseriale. 

 •t- Folia argute dentata seu laciniata, haud cordata. 



14. B. LACINIATA. Vide p. 87. Northern and New Mexico. 



