Petrie. — Descriptions of New Native Flowering-plants. 51 



Art. IV. — Descriptions of New Native Flowering- plants, with some Notes on 



Known Species. 



By D. Petrie, M.A., Ph.D. 



| Hi 'nit before lite Aneldand Institute, 13th December, 1916; received by Editors, 30th 

 December, 1916 ; issued separately, 28th June, 1917.] 



1. Wahlenbergia flexilis sp. no v. 



Caules a summa radice complines gracillimi elongati flexuosi procum- 

 bentes teretes glabri parce ramosi. Folia + conferta anguste lanceolato- 

 spathulata Integra acuta v. subacuta, inferiora opposita distantia, superiora 

 alterna. Pedunculi terminales elongati 1-flori. Corolla infundibuliformis ; 

 stylus in ramos 2 recurvatos divisus. '.|\| 



Stems several from the top of a long slender root, very slender, usually 

 with long internodes, flexuous terete glabrous, 4—8 in. long, more or less 

 branched near the base and at the tops, the branches often loosely inter- 

 laced. 



Leaves in opposite distant pairs on the lower part of the stem, alternate 

 higher up and often more or less crowded at the tops, variable in size and 

 outline, §-l-|in. long, Jin. in greatest width, narrow lanceolate-spathulate 

 or almost linear, gradually narrowed to the base, acute (rarely subacute), 

 entire, glabrous thin or slightly coriaceous, edges somewhat cartilaginous, 

 when dried more or less recurved, midrib evident, veins oblique reticulate 

 rather obscure. 



Peduncles terminal, 4-6 in. long, filiform, glabrous, 1 -flowered, with or 

 without one or two short linear bracts. 



Flowers + fin. long ; calyx narrow, one-fifth as long as the corolla, cut 

 half-way down into 5 linear-subulate lobes ; corolla funnel-shaped, cut for 

 one-third its length into 5 triangular acute lobes ; style ending in 2 rather 

 long arms that are recurved when mature ; capsule obconic, J in. long, 

 usuallv 2-celled. 



J 



Rah. — -Higher parts of Clarence Valley, Inland Kaikouras, Marlborough : 

 end of December, 1915 : B. C. Aston ! 



2. Gentiana tereticaulis sp. nov. 



Annua: caules simplices erecti teretes 2 , 5-45dcm. alti, internodiis 

 elongatis. Folia pauca tenuia subacuta ; radicalia longe petiolata, 4-5 cm. 

 longa, laminis anguste ovatis, 3-5-nerviis ; caulina perdistantia, supremis 

 cuneato-ovatis sessilibus ; pedunculi floribus 1^-2 longiores graciles teretes. 

 Flores albi 15-18 mm. longi, terminalibus umbellatim dispositis ; pistilla 

 matura corollam excedentia. 



Annual: stems simple, erect, moderately slender, terete, 2"5-45dcm. 

 (10-18 in.) high, internodes several times longer than the cauline leaves. 



Radical leaves few, thin, subacute, the blades narrow-ovate contracted 

 into thin flattened petioles equalling or exceeding the blades, + If in. long, 

 3-nerved or with an additional outer pair reaching half-way up the blade ; 

 cauline in few opposite widely distant pairs, the lower like the radical but 

 shorter, the upper ovate-cuneate with a broad more or less decurrent base. 



Inflorescence a terminal 4-7 -flowered umbel, with or without a few long- 

 pedunculate smaller umbels or solitary flowers from the axils of the upper- 

 most cauline leaves. 



Peduncles about twice as long as the flowers, slender, terete. 



