Mr. J. Miers on the Bignoniacese. 113 



glabris, ad nodos dilatatis; foliis 3-foliolatis aut conjugatis et 

 ecirrhosis, foliolis ellipticis, imo obtusiusculis, aut subacutis, 

 3-nerviis, apice brevissime attenuatis, obtusis et emarginatis, 

 coriaceis, supra pallide viridibus, opacis, costa mediana ner- 

 visque subimmersis cano-puberulis, subtus pallide glaucis, 

 glaberrimis, nervis venisque valde reticulatis, prominen- 

 tibus, nervo marginal! cartilagineo, reflexo, dense poroso- 

 punctulatis, glandulisque paucis immei"sis signatis; petiolo 

 petiolulis paulo longiore cunctis apice tumidulis, teretibus, 

 dense et sordide cano-tomentellis ; racemis axillaribus fructi- 

 feris, petiolo dimidio longioribus, glauco-tomentosis ; capsula 

 compressa, siliquiformi, late lineari, glauca, subtomentosa, 

 valvis convexiusculis subcrassis; seminibus plurimis, imbri- 

 catis^ compressis, testudiniformibus, utrinque in alam opacara 

 paulo latiorem expansis. — Prov. Rio de Janeiro^ v. s. in herb. 

 Mus. Brit. (Itaguahy, in sepibus, A. Cunningham). 



Planta scandens, habitu Adenocalymna comosum aliquomodo 

 simulans. Internodii 2^-3 poll. dist. ; petiolus crassiusculus, 

 9 lin. long., petioluli laterales 5 lin., temiinalis 7 lin. long.; 

 foliola 3 poll, long., If poll, lat., terminale paulo angustius 

 et longius ; foliola stipuloidea linearia, erecta, eglandulosa, 

 ^ lin. long., 1 lin. lat. ; racemi rachis crassiuscula ; pedicellus 

 valde incrassatus, 5 lin. long.; capsula 3^-4 poll, long., 6-7 lin. 

 lat., diam. trausverso 4 lin.; valvfe convexiusculse, lineis 3—4 

 abbreviatis ssepius evanescentibus, subcarinatfe tuberculisque 

 paucis signatae; replum compressum, utrinque liberum. Semina 

 plurima, transversim elongata, utrinque 1-serialia, compressa, 

 disco crasso-coriaceo, testudiniformia, 6 lin. diam., hilo lineari 

 submarginali 6 lin. long., inclusis extremitatibus in alas opaco- 

 membranaceas expansis 4 lin. lat., 2 poll, longa *. 



Tanaecium. 



This genus is remarkable for the extreme length and narrow- 

 ness of the tube of its corolla, as well as for the peculiar struc- 

 ture of its fruit and seeds. From the evidence here adduced, it 

 will be seen that its structure and affinities have been little under- 

 stood. Dr. Seemann, in a recent monograph of the genus (Hook. 

 Kew Journ. ix. 81), and again in his interesting Synopsis of the 

 CrescentiacetE (Linn. Trans, xxiii. 1), follows the example of De- 

 Candolle in placing it in that order : he there adopts the mis- 

 take of preceding botanists in associating with the tyjiical spe- 

 cies the parasitical plant which Swartz had originally, and with 

 much hesitation, conjoined with it; contrary, however, to the 



* This plant, with the analysis of the seed, will be seen in the ' Contri- 

 butions,' Plate 5-5. 



Ann. ii; Mag. N. Hist. Ser.3. To/.viii. 8 



