; 
MR. E. G. BAKER ON THE GENUS OYTINUS. 465 
On a New Species of Cytinus from Madagascar, constituting a 
New Section of that Genus. By Epmunp G. Baxer, F.L.S. 
(Read Ist March, 1888.] 
(Prate XIX.) 
Iw the last parcel of plants sent by the Rev. R. Baron, F.L.S., 
from Madagascar was a curious parasite of which the following 
communication is a description. It was found by him in the 
forest about thirty miles east of Mandritsara, North-west 
Madagascar. Contrary to the other species of the genus Cytinus, 
this plant grows on the trunk of a small tree. Specimens of the 
host were also forwarded with the parasite; the flower material is 
incomplete, but it apparently belongs to Dicoryphe, a curious 
genus of Hamamelidee endemic in Madagascar. Iwill give in 
the first place comparative characters of this new subgenus, and 
of the three already known. 
Subgenus I. EvcYTINUS. 
Ad Cistarum radices parasitica. Caulis productus. Monoicus. 
Flores dense spicati. Perianthii segmenta 4.  Bracteole 2. 
Connectivum supra loculos haud productum. Stigma capitatum 
8-10-suleatum. Placentw 8-10, simplices. Species 1.— Regio 
Mediterranea. 
Subgenus II. Hv»orxPrs (Pers.). 
Ad Eriocephali et Agathosme radices parasitica. Caulis pro- 
ductus. Dioicus. Flores 1-8 spicati. Perianthii segmenta 6. 
Bracteole 2. Conneetivum supra loculos productum. Stigma 
globosum, lamellis 12-14 cuneato-subulatis. Placente 12-14, 
ramos®. Species 1.— Africa australis. 
Subgenus III. BpaArroruYroN (Eichl.). 
Ad radices parasitica. Caulis productus. Dioicus. Flores 
numerosi dense spicati. Perianthii segmenta 4-9. Bracteole 0. 
onnectivum supra loculos longe productum in Cytino americano, 
R. Br, haud productum in C. Andrieuxii, Hemsl. Stigma 
Tadiatum obscure lobatum.  Placente 10-14. Species 2.— 
Mexicane. 
