﻿)i6j SMITH—PLANTS FROM CENTRAL AMERICA 381 



Besleriae clavis species Centrali-Americanas ad facile dignos- 



A. Corolla basi subaequalis 



1. Folia supra laevia B. barbensis Hanst. 



2. Folia supra scabrido-bullata B. J>rinceps Hanst. 



B. Corolla calceiformis B. pansamalana Donn. Sm. 



II. Pedunculi plurirlori 



A. Pedunculus pedicellis longior 



a) Corolla calycem vix superans B. macropoda Donn. Sm. 



b) Corolla calycem bis superans 



f Calycis segmenta subulato-lanceolata B. laxifiora Benth. 



ffCalycis segmenta orbiculari ovalia. . .B. imbricans Donn. Sm. 

 2. Corolla prona 



a) Corolla cylindrica B. Wcndlandhina Hanst. 



b) Corolla infundibularis B. acropoda Donn. Sm. 



B. Pedunculus pedicellis brevior 



1. Discus annularis B. acutifolia Benth. 



2. Discus biglandularis B. triflora Hanst. 



III. Pedunculus obsoletus 



A. Pedicelli bracteati 



1. Bracteae oblongo-ovatae B. pycnosuzygia Donn. Sm. 



2. Bracteae lineares B. congestiflora Donn. Sm. 



B. Pedicelli ebracteati 



1. Corolla calyce paulo longior 



a) Calycis segmenta integra B. robusta Donn. Sm. 



b) Calycis segmenta dentata B. columneoides Hanst. 



2. Corolla calyce bis vel ultra longior 



a) Segmenta filiforme linearia B. trichostegia Donn. Sm. 



b) Segmenta acute ovata B. costaricensis Hanst. 



c) Segmenta obtuse ovalia 



fSegmenta nervosa B. Ursula Hanst. 



f f Segmenta enervia B. glabra Hanst. 



Gesneracearum sequntur quaedam species Austro-Americanae 

 ineditae. 



Diastema platylomatum Donn. Sm. — Folia dimorpha, altero 

 oblongo-ovato alterum orbiculari-ovatum bis superante, supra 

 bullato-scabrida subtus versicoloria. Pedicelli filiformes in axillis 

 bini vel in pedunculo communi terminali 4-ni. Calycis segmenta 



