A NEW TREE-FERN FROM JAMAICA, 275 
ovary, and simple exstipulate tienes for which I propose the name 
of Diplasandra. The origin of the plant is quite uncertain ; it ma 
have come from the Andamans or New Guinea, but it is perhaps 
more likely to be Polynesian. I subjoin a diagnosis, drawn up 
om living specimens :— 
\S5' Pueranpra (Diplasandra) savroputrouia, — Arbuscula 
caule aculeis sparsis rectis armato, foliis 8 pétiolo 24 pou ncaleis 
no tes in conum hes validum Uaen aan 
mee 12-13 loculari, shictatiice circ. 13 in anulum ad coni stylini 
apicem connatis, fructu globoso Cerasi mole. 
Culta in hort. bot. Hongkongensi, ubi flores fructusque primum 
mm. Martio Apel a. 1880 prebuit. (Herb. propr. n. 21682). 
A NEW TREE-FERN FROM JAMAICA. 
By G. 8. Jenman. 
OyaTHEea MONSTRABILA, Jenman, n.sp.—Trunk erect, 4 or more 
feet high, 8. inches in diameter : stipites 15-18 inche es long, 
chestnut-brown below and straw-coloured higher, densely armed 
with short, mostly Seeet, spines, and clothed, tected on the 
upper side, at the base with linear, acuminate, castaneous scales; 
fronds spreading, 3 or iy feet long, 15-20 inches Wie, bi- (tri-) 
innate; pinne spreading, subdistant, nearly sessile, the superior 
sometimes furcate at the base, the larger ones 10 inches long and 
4 inches wide; pinnule subdistant, sessile, ligulate, their apices 
obtuse and rounded, 11-24 inches long, 4 or 5 lines wide, cut 
st e costule 
slightly decurrent lobes, which are 2 lines deep and rather more sf 
width ; — sparsely prickly, th penseoess down the face 
= tule also; coste furnished a with 
mall, shes ttered, brownish scales, he pee with minute bullate 
Gatee also dark - upper surface dull green, the cai po sub- 
ruinose; texture firm; veins forked, spreading flabellately or 
3 or more jugate ; sori sparse, situated at the forking of the veins; 
ited by Baillon (* Adansonia,’ xii. 
136 ; Perego sai eres forthe opinion of so abla a botanist as 
Mr, C. B. Clarke, who still — : — (Fl. Brit. Ind. ii. 740), makes me 
hesitate about including Tupidanth 
