KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 55. N:0 5. 



79 



P. ocliretitus Raoul. 



Nouvelle Zelande, — in Annals des sciences nat III, 

 refers to a plant lie had gathered in »la presque ile 



Choix de pi antes de la 

 Bot. II, 1844, 117. — Fig. 30. 



The description of Raoul 

 de Banks » (Peninsula Banksiana 

 in the south island). It has 

 greyish-green leaves with very 

 obtuse, almost truncate or 

 even a little emarginate, canali- 

 culate apex, seldom endowed 

 with a nearly imperceptible 

 blunt point (sfoliis linearibus 

 apice rotundatis truncatis v. 

 emarginatis viridibus»: Raoul); 

 peduncles rather elongated, 30 — 

 100 mm ; styles straight ; stigma 

 covering their upper surface. 



Anatomically the stem is 

 distinguished by the 2 — 3-celled 

 pseudo-hypoderma along which 

 a complete circle of mechanical 

 strands are arranged, Fig. 30, 

 A. Interlacunar bundles are 

 wanting. The endodermis con- 

 sists of 0-cells and the central 

 cylinder has a median channel 

 and two lateral ones (oblong 

 type). The subepidermal strands 

 still appear in the peduncle but 

 the endodermis has disappeared 

 and the two median bundles run 

 separately conducted by 2 — 6 

 likewise free lateral ones. 



Habitat: N. Zeal, N. Tsl., 

 Wakato River, 84, Cheeseman 

 (hb. Stockholm.). Tasmania, 

 GuNN (hb. Uppsal.). 



Distinguished from this, but probably of common origin a proper Australian race 

 appears with repeatedly furcate ramification upwards according to the type B (fig. 2). 

 Leaves more brownish, more tapered towards the top, in the branches always more 

 or less cuspidate and usually with stronger mechanical strands than has the true 

 P. ochreatus. The front-field of the ligules 17 — 18-fibrous. Besides the form has 



Fig. 30. A — E. P. ochreatus Raoul. A, Transverse section of the stem, *^. 

 B, Transverse sect, of the peduncle, a, median, b, lateral bundles, str, subepid. 

 strands, Y. C, Pistil, lateral view, ij". D, Youngest and E, a little older leaf 

 (top and main-nerves), ^. F — K. P. furcaius Hagstr. F^ Transverse section 

 of the peduncle, -/. G, Transverse section of a stem-leaf, middle part, Y*. 

 H, Tops of leaves, d and e, corresponding to D and E, y. /, Pistil, lateral view, 

 K". K, Fruit, lateral view, J. 



