Ailanthus integrifolia Lam. ex Steud.

NEW YORK BOTANICAL GARDEN
04967600
SIMARUBACEAE
AILANTHUS Desfontaines
Ailanthus pongeiion Blanco FI. Filip. (1^3J) ,380; ed.( 2 (1845) 268; 6<j'; ’
3, 2 (1878) -134, non-Gmèl. = ÂILÀNTfHU‘S BLANCOI Merr.inf ça.
Fernandez-Villar reduced Ailanthus pongeiion Blanco to' Ailan-
thus malaharica DC., which I considered to be correct in my
first paper on Blanco’s species* Govt. Lab. Pufil. (Philip*), 27
(1905) L^f^o^eyer;, ha^h^^ecured^fidw^in^^material
from; B^^an ¥À)vjncèj together witjï fruiting material“ from 1
|Tayabas and Camarines, Ï proposed the species AMa/ntJms philip-
Merr., of which For. Bur. 2719 Borden is the type. To
this species Î reduced Ailanthus pongeiion Blanco, non Gmel.,
hpt I am now convinced that this was an error. Blanco’s de-
sériptipn is very imperfect, but his stateifient “Samaras may lar-
gâs” applies to the form I propose to. call Ailanthus blaneoi,
whicl^has fruits up to 12 cm »in,-length* rather thap, to A- philimM
pmensis Merr., which Has fruits only 5 cm long.^Below i^,gwen
a-description of the new species.:
tuZON,	f rovîneêT grounds of the College -IfIfgricuP®*'
ture at Los Baftos, For. Bur.*2dÊ$l F%Lamil (t^pe^^in flower,
Feb. 25, 1914, also fruiting material from the same tree, May,
1914 {Species BJtmcoanae No. 606), For. Bur. 20350 Cetesting,
May, 1913, from the same tree; Cayticling, For. Bur. "22337
jfariano, January, 1911, with very young flowers.
A species well characterized by its large, prominently reticu-
late samaras, its pubescent petals, glabrous filaments, and stel-
lately spreading styles or styie-arms. It is entirely different,
from Ailanthus philippinensis Merr. in vegetative characters,
flowers, and fruits.
AILANTHUS BLANCO I Merrill sp. nov. § Eupongetion.
Arbor alta, usque ad 40 m alta, ramulis iflcrassatis; foliis-
glabris/circiter 80 cm longis, foliolis 9-jugatis, valde inaequilate-
ralibus, usque ad 18 cm longis, acuminatis, integris, in sieciiate
pallidis; panieulis axillaribus, cireiter 50 cm longis, subglahris
vel leviter pubescentibus ; florifous 5-meris, petalis extus pubes-- -
centibus, filamentis glabris; fTuctibus planis, valde reticuljatis,
apice~£otundatis, circiter 12 cm longis, 3.5 ad 4 cm latis*
A tall tree, reaching a height of at least 40 meters; glabrous
except the tips of the branchlets and parts of the inflorescence.
Ultimate branchlets light-gray, stout, up to 2 cm in diameter,
marked with large petiolar scars, the very tips pubescentl'V^,
Leaves about 80 cm long, pntir^y; g;labrous, the Jeafl^5'¿Whit'
9rjugate, obliquely oblong-ovate, some^hat;falibafe;*entife, acumi-
nate, base Avei^ inequilateral, pale when dry, 12 to 18 cm long,
5 to 6.5 cm wide, usually with a few glands on the lower surface *
near the base; lateral nerves 8 to 12 on each side of the midrib;
petiolules 1 to 1.5 cm long. Panicles up to 50 cm long, axillary,
rather few flowered,, lax, nearly glabrous or the branchlets,^ i
somewhat pubescent. Flowers 5-merous. Petals oblong-elliptic, |
obtuse, 7 to 8 mm long, rather densely gray-pubescent, exter-
nally. Filaments 4 mm long, glabrous; anthers 1.5 mm long.
Carpels 5, gray-pubescent, the styie-arms stellately spreading,
1.5 to 2 cm long. Samaras usually 3 to 5 from each flower,
thickly coriaceous, glabrous, plane, not at all twisted, rounded
at the apex, about 12 cm Iong,;j3-.5 to 4 cm wide, prominently/ f
’ reticulate. ,
COLLECTION CITED IN
IDENTIFICATION LISTS
OF MALESIAN SPECIMENS
Jss Miws&os
The New York Botanical Garden
S PEC
CaU'CCj
Juoaa S2uwue -Vvjbil ¿ts 4oj^e	6.
12881. i>ct a	C	\S>a4
M Eli li IL:
13LANCOANAE
N»a06
fclaaooi Merr.
poiigelioa Llano o,
>oa Gmel.
04967600