490 PITTOSPORACEAE. [ Pittosporum. 
The distribution of P. obcordatum is most puzzling. It was originally discovered 
by Raoul at Akaroa about 1841; but has not been since observed in that locality, 
although repeated search has been made for it. In 1901 it was collected by the late 
Mr. R. H. Matthews near Kaitaia, a locality quite 600 miles from Akaroa. Only a few 
specimens were seen, and impending drainage operations will probably destroy these 
in a short time. In the spring of 1920, however, it was unexpectedly discovered by 
Mr. G. O. K. Sainsbury by the side of the Wairoa River, some 12 or 15 examples being 
noticed. It may be remarked that this station is almost exactly intermediate between 
the two already known. 
I have to express my thanks to Mr. Sainsbury for an excellent suite of specimens 
from the Wairoa locality, and for the totally unexpected proof, which is alluded to in 
my description, that the young seedlings have very different foliage from that of the 
mature plant. It should also be mentioned that the specimens from Kaitaia have the 
young leaves and branchlets more silky-pubescent, and the leaves rather larger, than 
is the case in the other localities. 
8. P. rigidum Hook. f. Fl. Nov. Zel. i (1853) 22, t. 10 (an part).— 
A much-branched woody shrub 5-10 ft. high or more; branches stout or 
somewhat slender, more or less erect, not interlaced or divaricating ; when 
young (together with the leaves and young capsules) densely clothed with 
ferruginous tomentum, but becoming glabrous when old. Leaves alternate, 
shortly petiolate, +-lin. long or even more, oblong or obovate, obtuse, 
thick and coriaceous, in mature plants usually entire; young plants with 
the leaves slightly narrower, more or less toothed, especially towards the base. 
Such leaves often persist on mature plants for a considerable time. 
Flowers small, solitary and axillary, very shortly pedicelled. Sepals 5, 
ovate, caducous. Petals dull-purple. Capsule densely clothed with ferru- 
ginous hairs when young, coarsely granulate when old, broadly ovate- 
cordate, apiculate at the tip, }-41in.; peduncles short, often decurved.— 
Handb. N.Z. Fl. (1864) 20; T. Kerk Students’ Fl. (1899) 49; Cheesem. 
Man. N.Z. Fl. (1906) 55. 
Norta [snanp: Mount Hikurangi, Adams / Petrie! Lake Waikaremoana, and 
Ruahine Mountains, Colenso ; base of Ruapehu and Tongariro, T. F. C., Cockayne ; 
Tararua Mountains, H. H. Travers !T. F. Arnold ! Petrie ! B. C. Aston ! Cockayne, and 
others. Sourn Istanp: Nelson—Bidwill and others. 2000-4000 ft. Novem ber-— 
December. 
Very closely allied to the following species, under which the differential characters 
of the two plants are pointed out. 
9. P. divaricatum Cockayne in Trans. N.Z. Inst. xlvi (1914) 111.— 
A densely branched hard and rigid shrub 5-12 ft. high; branches stout, 
often extremely thick and woody, flexuose and interlaced, glabrous or nearly 
so. Leaves of young plants polymorphous, oblong or obovate to lanceolate 
or almost linear, $-#in. long, lobed, dentate or unequally pinnate, usually 
thick and coriaceous. Leaves of mature plants +? in. long, linear-obovate 
to oblong or ovate, thick and coriaceous, glabrous, entire or variously 
dentate or crenate or lobed, obtuse, dark blackish-green. Flowers small, 
solitary, apparently terminal on short arrested branchlets which are often 
axillary. Sepals ovate or ovate-oblong, pale-green, caducous, faintly 
ciate. Petals linear-spathulate, recurved at the apex, dark - purple. 
Ovary faintly hirsute. Capsules subglobose, 4in. diam., mucronate at the 
tip. Seeds 2-5.—Cockayne in Trans. N.Z. Inst. xliv (1912) t. 3, £. 2, and 
t. 8. } 4 vee: Civ. 
NORTH Isanp : Volcanic plateau around Tongariro and Ruapehu, Cockayne, 
T. fF. C. Sours Istanp: Not uncommon in mountain districts from Nelson and 
Marlborough southwards. Altitudinal range 500-3500 ft. December—January. 
=.°1S (144K) (QK: 
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