MAR. 19, 1923 BRITTON AND STANDLEY: NEW RUBIACEAE 105 
SPECIMEN EXAMINED: Ecuapor: Subandine woods, between Cotocallao 
and Nono, Sodiro 44/1 (fragments of type coll.; U.S. Nat. Herb. no. 
1,059,381). 
3. Ericentrodea mirabilis (Sherff) Blake & Sherff. 
Bidens mirabilis Sherff, Bot. Gaz. 61: 496. pl. 31. 1916. 
SPECIMEN EXAMINED: Peru: Humabalpa, November, 1857, Spruce 6273 
(fragments of type coll. in Gray Herb, and herb. Sherff; photograph in U.S. 
Nat. Herb.). 
Described by Spruce as a climbing herb, but probably, like the other species 
of the genus, either shrubby or suffrutescent. The heads examined have only 
young achenes. In these the awns, borne on a definite although short neck, 
are usually in two groups of 5 or sometimes 6 over the angles of the achene, 
agreeing in this respect with those of the other two species, but they do not 
seem to be united at base. In a few achenes, however, there were 2 or 3 
shorter awns on each side of the achene between the main groups of awns. 
One achene examined bore altogether 15 awns, 5 each in the two groups and 
5 smaller ones between them. From the appearance of some of the young 
achenes, it seems probable that a narrow wing is developed at maturity, at 
least in some cases. | 
3. Cyathomone Blake, gen. nov. 
Shrub (?); leaves opposite, petioled, biternate or pinnate-ternate, mem- 
branaceous; heads 7 to 15, cymose, nodding, long-peduncled; involucre double, 
as in Bidens, the outer phyllaries about 5, herbaceous, the inner longer, sub- 
membranous; receptacle convex, the pales flattish, membranous, lineate; 
flowers unknown; achenes strongly obcompressed, the body narrowly obovate, 
contracted at apex, with two broad, ciliolate, somewhat pectinate-lobate 
wings, these usually adnate to the pappus cup; pappus of 2 very fragile 
retrorsely hispid awns and a turbinate, spinulose-ciliolate, persistent corona 
about 1 mm. high. 
Type species Narvalina sodiroi Hieron. 
1. Cyathomone sodiroi (Hieron.) Blake. Fig. 1, d. 
Narvalina sodirot Hieron. Bot. Jahrb. Engler 29: 50. 1900. 
SPECIMEN EXAMINED: Ecuapor: Subtropical woods along the Rio Pilatén, 
Sodiro 44/3 (fragments of type coll.; U. 8. Nat. Herb. no. 1,059,380). 
The generic name, from xvagos, cup, and porn, an abiding, refers to the 
persistent corona. 
BOTANY.—Three new plants of the family Rubiaceae from Trinidad. 
N. L. Brirron, New York Botanical Garden, and Pav. C. 
STANDLEY, U. 8. National Museum. 
Study of a collection of plants received by the New York Botanical 
Garden as a loan from the Trinidad Botanic Garden has revealed 
material of many interesting plants, particularly some not previously 
recorded from Trinidad. Among them are the three species of 
