446 ON OAKESIA. 
Ovula erecta, anatropa. Discus hypogynus nullus. Stylus 
tenuis, brevi exsertus, apice trifidus, laciniis subulatis 
recurvis, intus stigmatosis. Fructus parvus, drupaceus, 
siccus, dbpressó-plabois, tri-abortu dipyrenus, pyrenis car- 
tilagineis, monospermis. Semen ?—Fruticulus Boreali-Ame- 
ricanus, depressus, ramosissimus, ramis retroflexis, tenuibus ; 
foliis verticillatis ternis quaternisve patentibus, convexo-planis, 
anguste-linearibus, obtusiusculis, margine apiceque evanescente 
scabriusculis, dorso longitudinaliter sulcatis ; floribus dioicis, 
terminalibus, glomeratis, sessilibus, capitulis extus squamis 
aridis cinctis. Klotzsch, Le 
Oakesia Conradi.—Ceratiola ericoides, Herb. Lambert. Em- 
petrum Conradi, Torr., l. c. Tuckermania Conradi, Kl., Le 
Has. Newfoundland; Cormack in Herb. Lamb. New 
Jersey ; Conrad, Rafinesque. Plymouth, Masstts; Oakes; 
Tuckerman, Russel. Kennebeck River, Maine ; Nuttall. Fl. 
March, April,—Fr. ? (coll. in August). “ In comparing,” says 
Dr. Klotzsch, “ the characters of our plant with those which 
distinguish the genera Empetrum, L., (consisting of Empetrum 
nigrum, L., and Empetrum rubrum, Vahl), Corema, D. Don, 
(Empetrum album, L.) and Ceratiola, L., we find that Empe- 
trum differs in having single axillary iow; supported by 
three bracts, a three- lavad corolla, a 6-9 celled ovary sunk in 
a fleshy disk, and a closely sessile, radiately expanded 6-9 
cleft stigma ;—that Corema, agreeing with this plant as respects 
the habit of inflorescence, is yet distinguished from it by the 
want of bracts, by a three-leaved corolla, an ovary sunk in a 
fleshy disk, and a radiately expanded six-cleft stigma, sup- 
ported by a short style ;—and that Ceratiola, approaching it in 
a two-leaved corolla, differs in having axillary flowers sup- 
ported by four bracts, a two-leaved calyx, two stamens, a 
two-celled ovary sunk in a fleshy disk, and a radiately 
expanded six-cleft stigma, supported by a short style.” 
In its terminal and capituliform inflorescence, Oakesia 
resembles the genus Corema of Portugal and the Azores. 
In its narrow-linear leaves it agrees perfectly both with 
Corema and Ceratiola, and like these genera, differs strikingly 
