SCHOMBURGk's GUIANA PLANTS. 127 



n. 1133, from Panama, appears to be JV. angustifolia of 

 Kunth, but perhaps not of Linnaeus. All these, as well as 

 W. Indica, are scarcely distinguishable from TV. Americana. 

 Gardner's n. 2056, from Piauhy, which is Bianchet's n. 2579, 

 from Serra Jacobina; and Gardner's n. 2056*, from Piauhy, 

 the same as Bianchet's n. 2691, from Serra Jacobina, appear 

 both to be new JValt/ierice, of which genus there are also 

 several undescribed species in Pohl's collection. 



665. Melochia (Kumelochia) Jasciculata (sp. n.) ; sufFruti- 

 cosa, ramis pubescenti-villosis, foliis breviter petiolatis ovatis 

 oblongisve serrato-crenatis basi rotundatis utrinque hirsutis 

 V. supra demum glabratis, florum glomerulis axillaribus ter- 

 minalibusqne subsessilibus, tulx) stamineo breviter 5-fido, 

 stylis hirsutissimis. — SufFrutex, ramis duris virgatis. Folia 

 pleraque poUice breviora, nunc oblonga acutiuscula et basi 

 subangulata, saepius latiora utrinque obtusa, supra viridia, 

 subtus vix canescentia. Flores in glomerulis 10 — 20, pedun- 

 culo pedicellisque brevissimis hirsutis. Bracteae parvse, subu- 

 latse. Calyces ampli, hirsuti, laciniis lato-ovatis subulato- 

 acuminatis. Corolla calyce duplo longior, alba, glabra. 

 Petala longiuscule unguiculata. Capsula utrinque pyra- 

 raidala, pubescens, angulis exterioribus acutis — Di-y savan- 

 nahs, Pirara; Schomburgk, n. 738. Piauhy; Gardner, n. 

 2068; Utinga; Blanchet, n. 2150. 



Gardner's n. 1472, from Ceara, is M. pyramidata ; his n. 

 1250, from ^lagoas, and n. 2061, from Piauhy, are M. to- 

 mentosa, a species which I have also from the West Indies, 

 both belonsinff to the section Eumelochia, distinguished not 

 so much by the dehiscence, so uncertain in many Melochict, 

 as observed by St Hilaire, as by the form of the capsule. 

 But even in this respect, besides the species mentioned by St 

 Hilaire, an intermediate form is observable in Cuming's n. 

 1229, an apparently new species, allied to Mougeotia injlata, 

 Humb. et Kunth, but with sessile anthers, a more inflated 

 calyx, and more angular capsule. 



666. M. (Riedleia) arenosa (sp. n.) ; caule sufFruticoso 

 prostrato? foliis longiuscule petiolatis ovatis acutis dupli- 



