192 PROCEEDINGS OF THE AMERICAN ACADEMY. 



bus gradatim longioribus gracilioribus atropurpureis folia longitudine 

 superantibus ; foliis lineari-oblongis integris 2.5-4.5 cm. longis 2.5-6 

 mm. latis obtusiusculis vel vix acutis basi subsessilibus vel petioliforme 

 angustatis ; cymis inaequaliter trichotomis, ramis lateralibus quam ter- 

 minali multo longioribus usque ad 8 cm. longitudine; cymulis parvis 

 1-2.5 cm. diametro 3-7-capitulatis ; bracteis subulatis; pedicellis 2-10 

 mm. longis bracteolatis ; capitulis 3.5-4 mm. diametro ; involucri 

 squamis ca. 20 glabris anguste lanceolati-linearibus acutissimis pler- 

 umque 2-costatis ; corollis glabris purpureis ; achaeniis nigris acute 5- 

 angulatis 1 mm. longis glabris ; pappi squamis 5 lanceolatis scariosis 

 apice setiferis 2 mm. longis. — British Honduras, in sandy open ground, 

 on pine ridge near Manatee Lagoon, 25 July, 1905, Prof. Morton E. 

 Peck, no. 80 (type, in Gray Herb.). A very distinct annual species with 

 glabrous narrow entire leaves, commonly proliferous in the axils. 



Ageratum radicans, sp. nov., glabrum prostratum ramosum ad 

 nodos et etiam hinc inde inter eos radicans ; caule teretiusculo brunneo 

 vel stramineo-brunneo ; internodiis 3-8 cm. longis ; foliis oppositis an- 

 guste elliptico-oblongis integerrimis glabris 3-nerviis supra viridibus et 

 cum nerviis impressis subtus pallidioribus impunctatis 4-8 cm. longis 

 5-15 mm. latis apice obtusiusculis basi petioliforme angustatis ; in- 

 florescentiis longe pedunculatis contractis cymosis paucicapitulatis ; 

 capitulis breviter pedicellatis 8-10 mm. diametro ; involucri squamis 

 anguste lanceolatis acutissimis plerumque 2-costatis subaequalibus 

 (paucis exterioribus parvis exceptis) maturitate patentibus; flosculis 

 glabris ; corollis limbum versus purpurascentibus ; achaeniis acute 5- 

 augulatis ca. 1.2 mm. longis ; pappi squamis 5 albis plus minusve erosis 

 vel laceratis apice cum seta munitis ca. 2.2 mm. longis. — British 

 Honduras, in fresh water pond near Manatee Lagoon, 4 August, 1905, 

 Prof. Morton E. Peck, no. 99 (type, in Gray Herb.). This species, in 

 technical characters exceedingly near A. Peckii, differs much in its 

 prostrate and repent habit, its very much larger leaves, and slightly 

 larger heads, flowers, and achenes. 



Podophania dissecta (Hook. & Am.), comb. nov. Phania ? dis- 

 secta Hook. & Am. Bot. Beech. 433 (1841). Eupatoriumdissectum (Hook. 

 & Arn.) Benth. Bot. Sulph. 113 (1844). Podophania Ghiesbreghtiana 

 Baill. Bull. Soc. Linn. Par. i. 268 (1880). Repeated efforts to discover 

 any distinctions between the types of Hooker & Arnott and of Baillon 

 have failed to disclose any difference, the floral characters, foliage, and 

 even pubescence appearing to be identical. 



HoFMEiSTERiA FASCicuLATA (Benth.) Walp., var. pubescens (Wats.), 

 comb. nov. H. jnihescensy^aXs,. Proc. Am. Acad. xxiv. 54 (1889). The 

 glandular pubescence, although, when copious, as in the original speci- 



