PALMS OF WESTERN TROPICAL AFRICA. 429 
Subfamily IT. LEPIDOCARYINE.E. 
Genus 4. CALAMUS, L. 
(Subgenus 1. CALAMI VERI.) 
1. CALAMUS DEERRATUS, Mann et Wendl. II. Loriferi ; caudice scandente ; aculeis vaginze 
ancipiti-subulatis transverse seriatis petioli rhacheosque brevioribus solitariis re- 
duncis; petiolo brevi; segmentis zequidistantibus utrinque circ. 35 elongato-lanceo- 
latis acuminatis ad margines et ad nervos 7 pagine inferioris et raro in nervo medio 
paginze superioris nigro-setulosis, subtus squamulis minimis rufis adspersis; spadi- 
cibus elongatis 2—3-partitis apice in loram elongatis, spinis 1-3 aggregatis reduncis ; 
spathis cylindricis appressis; fructu ovoideo, squamis flavescentibus ad marginem 
brunneis orthostichis 19-21. (Plate XLI. F.) 
Caudex scandens, 20-25! altus, l' crassus. Frondes circ. 5' long, longe vaginate, patentes, in planta 
juvenili aggregato-pinnatisectz in adultiore zquidistante pinnatisectze, partialiter aculeatze et fusco- 
tomentose ; aculeis basi flavescentibus apice nigris nitidis, vagine ancipiti-subulatis basi dilatatis 
margine dentato-serratis 3-12" longis basi sepe 3" latis, petioli erectis subulatis 9-12" longis, 
rhacheos conico-subulatis reduncis. Vagina cylindrica, arcta, inferne inermis, superne transverse 
zonatimque aculeata, oblique aperta, apice utrinque in lacinias ovatas cartilagineas marginibus aculea- 
tissimis producta, 13! longa. Petiolus semiteres, supra leviter canaliculatus, margine et medio dorsi 
sparse aculeatus, 3" longus, 1" latus. Rhachis gradatim attenuata, supra in parte posteriore applanata 
et sparse aculeata, in dorso longitudinaliter unifariam remote grosseque aculeata, in lateribus partis 
posterioris sparse minuteque aculeata, tomento fusco detergibili obtecta. Lamina ovata. Segmenta 
utrinque circ. 35, alterna, utrinque decrescentia, subzequidistantia, elongato-lanceolata, basi valde con- 
tracta, acuminata, membranaceo-cartilaginea, in pagina inferiore squamulis minimis fuscis adspersa, 
trinervia, neryo medio supra partialiter et remote setuloso, marginibus et nervis 7 subtus sparse setu- 
losis, setis flavescentibus apice nigris, media 14-15" longa 12-14” lata, 1—11" inter se distantia, ter- 
minalia 6" longa. Spadices tenuissimi, 8' longi, arcuato-dependentes, ramis primariis binis ternisve 
simpliciter ramulosis, tumque rhachi communi apice in appendicem nudam longissimam teretiusculam 
arcte vaginatam, ad internodia lateris alterius inermem, alterius aculeis solitariis geminatis raro 
ternatis quaternatisve et dimidiato-verticillatis recurvis ornatam protensa. Pedunculus basi cum 
vagina frondis superioris longitudinaliter connatus. Spathe longe, cylindricze, apice oblique fisse et 
bifidae, sparse aculeatz, tres inferiores ramos involventes, infima circ. l' longa anceps marginibus 
remote spinulosis, superiores unilateraliter sparse aculeatæ. Rami circ. pedem inter se remoti, 
arcuato-patentissimi, 9-12" longi, simpliciter alternatim disticho-ramulosi, spathella cyathiformi 
oblique acuminata 6" longa suffulti, ramulis florigeris circ. 30 bipollicaribus densissime bracteatis 
spathellis ramorum similibus sed multo minoribus et magis cupuliformibus. Flores flavescentes in 
spadice masculo solitarii, ima basi a bractea minima cupuliformi apice bidenticulata dorso fere usque 
ad basin fissa circumdata, in spadice foemineo geminati, alter masculus vel neuter, alter Kemineus, am bo 
bractea communi uti flores masculi cireumdati, foemineus bractea partiali cupuliformi ore obliquo 
bidentato.—M asc. fere 3" longi. Perianthium exterius cupuliforme, trifidum, laciniis late ovatis ; 
interius tripartitum, exterius duplo superans, laciniis oblongo-ovatis. Stamina 6 basi concreta, fila- 
mentis subulatis, antheris basi sagittatis lineari-oblongis. Rudimentum een globosum, pm 
stigmatibus 3 longis.—Fam. Perianthium staminaque ut in mare, antheris effoetis, m 
stigmatibus tribus triangularibus brevibus recurvis. Fructus ovoideus, apace — 78 سمت‎ 
4" in diametro, 19-21 seriebus squamularum loricatus, squamis convexiusculis medio sulco levi longi- 
tudinali notatis, testaceo-ochreatis, nitidis, margine inferiore membranaceo eroso-laciniato, margine 
VOL. XXIV, 3K 
