ROBINSON. — SPERMATOPHYTES, NEW OR RECLASSIFIED. 401 



acutis basi vix angustatis rotundatis 2-2.5 cm. longis ca. 5 mm. latis 

 serratis supra laxe villosis margine ciliatis subtus in costa media solum 

 longiuscule ciliatis aliter glabris ; foliis floralibus late ovatis acutis 

 subcordatis conspicue longeque ciliatis, inferioribus ca. 1 cm. longis 

 pedicellum subaequantibus, superioribus ca. 3 mm. longis pedicello 

 triplo brevioribus ; ramis inflorescentiae ca. 1. dm. longis racemiformi- 

 bus, pedicellis oppositis ascendenti-patentibus filiformibus ca. 1 cm. 

 longis apice nutantibus ; calycis segmentis lanceolatis acuminatis 3.5 

 mm. longis ; corolla ca. 1 cm. diametro, sacco lato, appendice interiori 

 ca. 0.7 mm. longa ; capsula depresse globosa 5 mm. diametro. — 

 British Honduras : on open damp ground, near Sibune River, 4 May, 

 1906, Prof. Morton E. Peck, no. 417 (type, in Gray Herb.). This 

 species differs from A. angustifolia Benth. in its conspicuously ciliated 

 stem and leaves, broader-based bracts, and smaller flowers ; from 

 A. salicariaefolia H. & B. it may be readily distinguished by its 

 smaller flowers and much more sparing pubescence of much longer 

 non-glandular hairs. 



Isidorea pungens (Lam.), n. comb. Ernodea pungens Lam. 111. 

 i. 276 (1791). E. pedunculata Poir. Encyc. Suppl. ii. 581 (1811). 

 Isidorea amoena A. Rich. Mem. sur les Rubiac^es, 204, t. 15, f. 1 

 (1829), and Mem. Soc. Hist. Nat. Par. v. 284, t. 25 (1834). 



Bikkia campanulata (Brong.), n. comb. Grisia campanulata 

 Brong. Bull. Soc. Bot. Fr. xii. 406 (1865). 



Bikkia Pancheri (Brong.), n. comb. Bikkiopsis Pancheri Brong. 

 1. c. 405. 



Bikkia retusiflora (Brong.), n. comb. Grisia retusiflora Brong. 

 1. c. 407. 



Houstonia mucronata (Benth.), n. comb. Hedyotis mucronata 

 Benth. Bot. Sulph. 19 (1844). Houstonia fruticosa Rose, Contrib. 

 U. S. Nat. Herb. i. 132 (1890), 239 (1893); Greenman, Proc. Am. 

 Acad, xxxii. 292 (1897). 



Houstonia umbratilis, n. sp., herbacea repens multicaulis ramosa 

 obscure strigillosa ; caulibus gracillimis interplexis subquadrangularibus 

 foliosis, nodis radicantibus, internodiis 2-9 mm. longis ; foliis parvis 

 ovatis membranaceis acutiusculis brevissime petiolatis utrinque strigil- 

 losis subtus paululo pallidioribus uninerviis obscure reticulato-venosis 

 2.5-4 mm. longis 1.8-3 mm. latis, stipulis brevissimis ; pedunculis 

 filiformibus 1.5 cm. longis terminalibus 1-floris; calyce basi turbinato, 

 tubo lobos ovato-lanceolatos acutiusculos anthesi aequante ; corolla 

 infundibuliformi in siccitate nigrescenti, tubo 5 mm. longo, lobis ovatis 

 patentibus ; staminibus 4 (eis speciminis observati exsertis, antheris 

 lineari-oblongis filamenta aequantibus) ; fructu seminibusque ignotis. 



VOL. XLV. — 26 



