` C. Barterii.) BECCARI. THE SPECIES OF CALAMUS.—SUPPLEMENT 3 
6. CALAMUS ÜlHwAITESH var. CANARANUS Becc. 
C. Thwaitesii Becc,; Cook, Fl. Bomb. ii, 807. 
To the localities add—South Kanara (Herb. Rep. Econ. Prod. of India). 
Vern. name. “ Jeddubetta.” Common in the evergreen forests at the foot of the 
Nilkund Ghat of N. Kanara (Talbot ex Cook l. c.) 
10. CALAMUS CASTANEUS Griff. Add:—Ridley, Mat. Fl. Mal. Penins. ii, 211 (partly). 
Ridley unites to this OC. Grifithianus Mart, and gives several localities not 
mentioned by me. He attributes to it the native name “ Atap Chuchur,” and says 
that the leaves are used for thatching. We are left uncertain, however, to which 
of the two species the localities, the native name, and the uses belong. 
13. CALAMUS DEERRATUS Mann et Wendl. 
In the Flora of Tropical Africa (viii. 109) Johnsons No. 242 from the Akim 
district, which is the type of C. akimensis Becc., and Cummins’s No. 128 from the 
Ashanti country (Cummins in Kew Bulletin, 1898, 80),— which I have not seen and 
may possibly belong also to C. akimensis—are referred to C. Deerratus. 
C. deerratus seems a rather common plant especially in the littoral regions of 
Old Calabar, Kamerun, and Spanish Guinea. I have seen good male specimens of it 
gathered (29th January 1909) by C. Ledermann at Tibati in Kamerun (No. 2428 in 
Herb. Berol), and others (g and ¢) by Günter Tessmann at Bebad in the region of . 
Campo, near the frontier between Kamerun and Spanish Guinea (No. 1093 in Herb, 
Berol). Of these last the sheathed stem is 3 cm. in diameter; the leaf sheaths are 
densely armed with laminate, almost black, horizontal spines, 10-15 mm. long, but 
at times less, The ocrea is 9 em. long, very densely armed on the outer side 
with laminate, spines, similar to those of the vagina, but larger, and up to 2 cm, 
in length, very approximate, and obliquely inserted. A female spadix bears 
5 partial inflorescences, is 2'5 m. long, and ends in a long clawed flagellum. The 
leaves are 1°2 m. long, inclusive of a petiolar part 20 cm. long. The leaflets 
are numerous and almost equidistant. 
Other specimens from Akoafim in Kamerun (Herb. Berol.) have sheathed stems 
2-5 em. in diameter; are strongly armed with spines, at times quite 25 mm. long; 
the ocrea is 14 em, and the petioles 15-20 cm. long; the leaflets are more 
inequidistant than in the other specimens and at times are even 8 cm. apart; 
otherwise as usual. On this account these last specimens are barely distinguishable 
from the type of C. Laurentii, which however seems to me to be only a form 
of C. deerratus. 
14. -Catamus BanrERUM Becc. 
The type specimen of this species is Barter’s No. 110 from OQnitsa, Lower 
Nigeria; but in the Flora of Tropical Africa (viii, 109) are added the following 
from Sierra Leone:—Musaia in marshy ground, Scott-Elliot No. 5121; Kambea, Scott- 
Elliot No. 4738, and Scoti-Hiltott No. 4460; the latter in the Berlin Herbarium 
Ann. Roy. Bor. Garp. Catcutra Vor. XI. 
