248 schoaiburgk's guiana plants. 



by others as iacluded in the tube; but this depends upon 

 wliether that part of the corolla only is considered a tube 

 which is cylindrical, the broad upper part being then desig- 

 nated as the throat ; or whether the whole of the corolla 

 below the limb be included under the name of the tube. 



564. E. rugosa (sp. n.) ; volubilis, ramulis junioribus 

 scabro-puberulis demum glabris, foliis oblongis breviter acu- 

 minatis basi ad petiolum emarginatis rotundatis aut cune- 

 atis subcoriaceis rugosis, supra scabro-pubescentibus v. 

 demum glabris nitidis, subtus albo-tomentosis v. demum fere 

 glabris, pedunculis incrassatis subspicatim multifloris, calycis 

 laciniis brevibus acutissimis, corolla infundibuliformi glabra. 

 — Folia bipollicaria. Bracteas lanceolato-subulatae, calycem 

 brevissime pedicellatum subeequantes. Corollae luteoe tubus 

 pollice parum longior, teres, rectus, intus ad insertionem sta- 

 miuum pilosus, faux tubo brevior, ampla, lacinlae latae. Sta- 

 mina, uti in affinibus, in fundo faucis e tubo exserta. — British 

 Guiana, Schomhurgk, n. 550, in some sets. 



565. E. hrachystachya (sp. n.) ; volubilis, ramulis pubescen- 

 tibus, foliis ovali-ellipticis obtusis mucronatis basi rotundatis 

 et sinu angusto cordatis membranaceis, supra pubescentibus, 

 subtus albo-tomentosis, pedunculis incrassatis subspicatim 

 multifloris, calycis laciniis brevibus acutissimis, corolla in- 

 fundibuliformi fflabra. — Sent under the n. 350 with the last 

 species, of which it may be a mere variety; but appears differ- 

 ent in the form and consistence of the leaves, of which the 

 veins are much less prominent, and in the short spikes. Both 

 may possibly even be varieties of ^. symphytocarpa, (G. T- W. 

 Meyer), but neither agrees precisely with his description. 



560. E. macrostoma (sp. n.); caule volubili glabro, foliis 

 ovatis V. oblongis mucronatis basi cordatis supra glabris sub- 

 tus tenuissime tomentellis, pedunculis folio longioribus apice 

 plerisque bifloris, calycis laciniis lineari-subulatis reflexo- 

 patentibus glabris corollae tubo brevi tenui, fauce longissima 

 arapla. — Affinis ex descriptione E. domingensi, Sw., sed caly- 

 ces glabri, et corolla (teste Schomburgkio) rosea. Folia 

 forma variabilia, nunc obtusissima cum mucrone, nunc 



