258 The Botanical Gazette. [July. 



■ 



Nutlet 5 X 3^, styles 2' long .— Most nearly related to T. 

 auriculata Meisn. and T. Arnottiana Meisn., the originals 

 of which in the Meisner herbarium of Columbia College have 

 been compared.— Jiquilisco, Depart. Usulutan, Salvador, alt. 

 220", Jan. 1893, Dr. W. C. Shannon, U. S. A., no. 5,064. 

 Named for Lieut. M. M. Macomb, U. S. Army, Engineer in 

 Charge, Corps no. i, Intercontinental Railway Commission. 



Piper flavidum C. DC. in Donnell Smith Enum. PI. Guat 

 2: 66; {% III. Steffensia C. DC); foliis brevissime petfolati s 

 lineari-lanceolatis basi asquali acutis apice acute acuminatis 

 mucronulatisque utrinque glabris, nervo centrali circiter ad \ 

 longitudinis nervos utrinque 3 alternos adscendentes mittente, 

 petiolo glabro basi ima vaginante, pedunculo glabro petiolum 

 superante, amento florente folii dimidium aequante, bracteae 

 vertice triangulari margine flavide hirsuto, bacca subtetragona 

 apice subtiliter flavide hirtella.— Ramuli glabri internodiis 

 brevibus, corticis collenchymate continuo zona fibrosa con- 

 tinua intus aucto, fasciculis intramedullaribus 2-seriatis. Limbi 

 8™ longi 13™™ lati in sicco firmuli flavicantesque. Petioli ad 

 2""" longi. Pedunculi e-"" longi. Amentia florentia 3-- crassa. 

 Stamina 4. 



Barranca de Rubelcruz, Depart. Alta VCrapaz, Guatemala, 

 alt. 2,500^ Apr. 1889, J. D. S., no. 1,744. 



Piper Tuerckheimii C. DC. in Donnell Smith Enum. PI. 



Guat. 3: 96; (§ III. Steffensia C. DC); foliis modice petio- 

 latis, hmbis 3- supra basin peltatis oblongo-ovatis basi rotun- 

 datis leviterque repandis apice acute acuminatis supra glabris 

 subtus praesertim ad nervos hirtellis, nervo centrali circiter ad 

 5 longitudmis nervos utrinque 3 oppositos adscendentes mit- 

 tente, lateralibus 4-5 e basi solutis tenuibus, amento quam 

 fohum plunes breviore apice longe mucronato, pedunculo 

 quampet.oluspluries brevlore, bracte^ apice truncato-pel- 

 tatae^ pelta triangulari margine hirtella. bacca subglobosa 

 vertice^h.rsuta.-RamuIi dense hirtelli. Limbi ad 24- longi 



p/^ vl'- ,^^t'^^' 4-5''" longi hirtelli basi vaginantes. 

 Peduncui 8 longi hirtelli. Amenti pars baccifera 5™ longa 

 mucro 2™ longus hirtellus. Stamina 4 . ^ "" 



, Io"T'^' !r«f '' ^^^^'^' ^'^^ ^^•'^P^^' Guatemala, alt. 

 3.800 , Aug. 1886, von Turckheim, no. 1,038. 



Piper Santa.rosaDum C DC in Donnell Smith Enum. Pl. 



Ouat. i: 96; (§ SteFFENSIA C DC^: fnlif^; mn^.V. ^.f.-^I.fc 



