192 PROCEEDINGS OF THE AMERICAN ACADEMY. 
bus gradatim longioribus gracilioribus atropurpureis folia longitudine 
superantibus ; foliis lineari-oblongis integris 2.5-4.5 em. 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 em. 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 em. 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; 1- 
florescentiis longe pedunculatis contractis cymosis paucicapitulatis; 
capitulis breviter pedicellatis 8-10 mm. diametro; involucri squamis 
anguste lanceolatis acutissimis plerumque 2-costatis subaequalibus 
(pancis exterioribus parvis exceptis) maturitate patentibus; flosculis 
glabris ; corollis limbum versus purpurascentibus ; achaeniis acute 5- 
angulatis ca. 1.2 mm. longis; pappi squamis 5 albis plus minusve erosis 
vel laceratis apice cum seta munitis ca. 2.2 mm. longis. — ritish 
Honduras, in fresh water pond near Manatee Lagoon, 4 August, 1905, 
Prof. Morton E. Peck, no. 99 (type, in Gray Herb.). This species, 
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. & Arn.), comb. nov. Phania? dis- 
secta Hook. & Arn. Bot. Beech. 433 (1841). Hupatoriwmdissectum (Hook. 
& Arn.) Benth. Bot. Sulph. 113 (1844). Podophania Ghiesbreg 
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. 
HOorMEISTERIA FASCICULATA (Benth.) Walp., var. pubescens (Wats.), 
comb. nov. H. pubescens Wats. Proc. Am. Acad, xxiv. 54 (1889). ‘The 
glandular pubescence, although, when copious, as in the original spe 
