144 THE TASMANIAN FLOEA. 



LiNAEiA SPURIA, Mill. Decumbent, 2-10 inches, slender. Leaves broadly 

 ovate, bairy. Flowers solitary, axillary, stalked. Corolla 3 lines long, 

 yellowisb, 2-lipped, spurred. 



Veebascum thapsos, Linn. Stout erect herb, 2-4 feet. Leaves oblong, 

 bairy, 6 inches to 1 foot. Flowers very numerous along the stem, 

 yellow, nearly regular, about i inch diameter. 



Veebascum blattaeia, Linn. Similar to the last, only smaller and less 

 hairy. Inflorescence looser. Flowers yellow or white. 



Ordee LVI. LENTIBULACE^. 



Flowers irregular. Calyx 2 or 4-lobed. Corolla-tube short, usually spurred ; 

 lobes arranged in two lips. Stamens 2, short, inserted in the corolla-tube. 

 Ovary superior, 1 -celled, with several ovules on a free central placenta. Fruit a 

 capsule. 



A small order, of few genera, found throughout the world. 



Calyx 2-lobed ... 1. Utricularia. 



Calyx 4-lobed 2. Polypompholyx. 



1. UTRICULARIA. 



Corolla with a broad, short, erect upper lip, entire or 2-lobed, and a much longer, 

 broader, spreading lower lobe. Calyx deeply divided into 2 lobes. 



The genus is large, and has a distribution corresponding with the order. The 

 species are all marsh or water plants, and are remarkable for the leaves on the 

 rhizomes often becoming developed as utricles. 



Corolla about f inch in diameter. 



Plant floating. Corolla yellow ... ... ... 1. U.flexunsa. 



Marsh plant. Corolla purple or white ... ... 2. U. dichotoma. 



Corolla about j inch in diameter. 



Flowers seldom solitary. Spur about as long as 



lip ... ... ... ... ... ... ... 3. Z7. lateriflora. 



Flowers solitary. Spur half as long as lower lip .. 4. U. monanthos. 



« 



1. U. fLbxuosa, Vahl. Plant floating, stems submerged, branched, and widely 

 spread. Leaves with thread-like lobes, some root-like, others beairing utricles. 

 Flowering-stems simple, erect, bearing 3-6 flowers in a raceme. Corolla yellow ; 

 upper lip short, ovate ; lower lip broad, spreading, about | inch diameter, bearing 

 a thickened centre above and a curved spur beneath. U. au.stralu, Hook. 



South Esk and Derwent Rivers. It occurs throughout Australia. A common 

 plant in tropical Asia. Fl. Nov.-Jan. 



2. U. DTCHOTOMA, Lah. A creeping or tufted marsh plant. Leaves usually 

 few, 3-| inch long, spathulate at the base of the flowering-stem, but when in 

 water elongating rhizomes are formed, bearing numerous spathulate leaves often 

 1-2 inches long, together with well-formed globular utricles of about 2 lines 

 diameter. Flower-stem simple, mostly 3-6 inches long, bearing 1-4 flowers, when 

 more than 1 arranged in pairs, when 3 the upper one terminal, the flowers then 

 appearing whorled. Flower-stalks slender, mostly under ^ inch long, with "2 or 

 3 small bracts at their base. Calyx-segments about 2 lines long, broad, the lower 

 one nearly orbicular. Corolla with a small, erect, usually entire, upper lip, and 

 a broad, spreading, lower lip i-f inch diameter, with a thickened central plate 

 and a descending spur. Colour usually purple, occasionally white, the central 



