68 



GENTIANE.E. [Halenia. 



their ramification, their characters require much to be explained. H. dejiexa JlfTert: caule vegetlori, stric- 



tiori, magis vircnte, alato nee angulato; ramis aut abbreviatis aut elongatis strictis, nee laxis patulis apice 



cernuis; foliis m^joribus, plerumque Iatioribu3, iinis confertis obovatis longe pctiolatis loete virentibus, nee 



ellipticis parvulis, sub anthesi jam emarcidis; calcaribus corolla duplo brevioribus curvo-deseendcntibus, 



dcmum curvo-subasccndentibus crassiuscuUs, nee corollam sequantibus stride patentibus dcntibuspue pili- 

 formibus. 



Tab. CLV.— jPi^. 1, Flower;^^. 2, Stamen; ^^. 3, V\si\hjig. 4, Capsule;^^. 5, Section of do.;/5r. 6, 

 Seed;^y, 7, Section of do.;^^. 8, Embryo: — magnified, 



2. H, Brentoniana (Griseb,): caule hiimili erectiusculo diffuse ramoso, foliis 3-5-nerviis 

 elliptico-oblongis acuminatissimis in petiolum attenuatis, summis subsessilibus oblongo- 

 lanceolatis, cyma terminali umbellaeformi 3-flora, flore centrali longius pedicellato, calcari- 

 bus crassiusculis obtusis curvo-descendentibus 1, subborizontalibus corolla brevioribus. 

 (Tab. CLYI. A.) 



Hadix curvo-descendens, annua. Caulis triuncialis, obsolete tetrapterus, glaber, siccus obscure cteruleo- 

 viridescens. Rami erecto-patentes, cauli similes. Internodia inferiora brevissima, superiora 4-6-8'" longa. 

 Folia patentissima 1-1 J'" longa, 4-8'" lata, glabra, subinaequalia, ima longius petiolata, spathulato-oblonga, 

 acuta, media clliptico-oblonga, acutissima, subsessilia, floralia minora. Pedicelli breviusculi, verticillastris 

 accedentibus cum cyma terminali et cum inflorescentia ramorum confluentibus, Sepala 4 oblongo-lanceo- 

 lata, acutissima, corollam dimidiam sequantia. Corolla campanulata-cylindrica, (5"' alta et lata,) lobis 

 ovato-triangularibus acutis erectis tubum sequantibus. Calcara corolla fere duplo breviora. AntTierce 

 flavae, parvulae, nutantes. Ovarium ovato-oblongum acutum, stylo nullo, stigmaiibus vix distinguendis. 



Hab. Newfoundland. Miss BrentoUy Dr. Morrison, 



Tab. CLVI. A, — Fig. 1, Tlo-wev.—magyiijied. 



3. H. heterantha (Griseb.); caule humili erectiusculo ramoso, foliis S-nerviis, imisspathu- 



latis petiolatis, superioribus ovato-subrotundis subsessilibus apice rotundatis apiculatis, 



floribus confertis, calcare tenui corolla triplo breviori, floribus inferioriI)us ecalcaratis. 

 (Tab. CLVI. B.) 



Radix curvo-descendens, annua. Caulis 4-uncialis, in ramos sequales plerosque opposito? divisus, as- 

 cendenti-erectus, glaber, teretiusculus 1. alis binis ex foliis decurrentibus tenuibus fere anceps. Internodia 

 inaequalia, ima 4"' longa, media uncialia, suprema semiuncialia. Folia ad lentem serrulata, sequalia, (8 

 longa, 6'" lata,) sed inferiora longius petiolata, obtusiora. Cyma terminalis umbellseformis 5-flora, pedi- 

 cellis insequalibus 1-4 linearibus, cui accedunt verticillastra 2-6-flora. Sepala 4 ovato-oblonga, acuminata, 

 juniora recurvata, corollam dimidiam sequantia. Corolla ochroleuca, breviter campanulata, lobis ovato- 

 triangularibus acutis erectis 2-3'"longi3 tubum rotundatum aequanfibus; calcar oblique descendens rectius- 

 culum; flores ecalcarati minores. Antherce globuloste parvulae, filamenti latitudinem subsequantes. Ova- 

 rium ovale, stigmatibus sessilibus erectis brevibus connatis. Capsula corollam marcesccntem fere duplo 

 excedens, elliptico-oblonga, Semina magna, albida, globosa, lECvissima, (suturse affixa.) 



Hab. Newfoundland. Miss Brenton. — This is a most remarkable species, on account of the absence of 

 the calcara in the lower flowers, which are also much smaller, at the same time that the branches are more 

 slender, on the top of which these flowers are crowded. This abortion, however, affords no reason to 

 doubt of the constancy of the generic characters ofHalenia, since the genus is as well limited by the struc- 

 ure of its ovarium and by the insertion of its seeds, as by its spurs; also, the form of the corolla itself is 

 constantly different from Sioertia. 



Tab. CLVI. B. — Fig, 1, Flower: — magnified. 



tfi 



