11. SIPHONIDIUM, Armstr.
"Leaves opposite. Flowers hermaphrodite. Calyx carapanulate, deeply 4-toothed, much wrinkled when dry; teeth with narrow acuminate points. Corolla funnel-shaped with an exceedingly slender curved tube 3 in. long, dilated upwards, swollen or slightly spurred about three-fourths of the way up at the commencement of the broadest part; throat campanulate; limb 2-lipped, upper lip of one narrow erect or suberect concave lobe; lower lip of three nearly equal spreading rounded lobes, throat not tumid but having a few scattered hairs. Stamens 4, didynamous, inserted on the throat, included, the two lower the longest. Anthers 2-celled, introrse. Style extremely slender, a little longer than the stamens, with a 2-lobed stigma. Ovary superior. Capsule 2celled, loculicidal, included within the calyx. Seeds minute (capsule immature)."
1. S. longiflorum, Armstr. in Trans. N.Z. Inst. xiii. (1881) 341.—"A small creeping or trailing herb. Branches clothed with scattered spreading hairs. Leaves opposite, ¼ in. long, entire, linear-lanceolate, rarely ovate, acuminate, obscurely 3-nerved, pubescent or glabrous, shortly petiolate. Flowers solitary, axillary, very shortly peduncled, not bracteate. Corolla pubescent, pale-blue(?) with darker veins."
South Island: Karamea, west coast of Nelson, Rev F. H. Spencer.
This is unknown to me, and in the absence of further information I have reproduced Mr. Armstrong's original description. It agrees in so many points with the characters of Anagosperma that the suspicion arises that the two plants may prove identical. But if Mr. Armstrong's description is correct it differs in the longer corolla-tube, the entire upper lip, and 2-lobed stigma. Mr. Armstrong does not mention the number of ovules.
Order LV. LENTIBULARIEÆ.
Herbs, either aquatic or growing in wet soil. Leaves in the terrestrial species radical, few or rosulate, entire; in the aquatic species more or less scattered, capillary and multifid. Flowers irregular, hermaphrodite, either solitary or several on a scapiform peduncle. Calyx inferior, 2-lipped or 4–5-partite. Corolla gamopetalous, hypogynous, irregular, the tube usually produced into a spur or pouch, the limb 2-lipped, upper lip entire or 2-lobed, lower lip 3–5-lobed. Stamens 2, inserted at the base of the corolla-tube; filaments usually broad, arched; anthers 1-celled. Ovary superior, globose, 1-celled; style short and thick; stigma 2-lobed; ovules numerous, on a free central placenta. Fruit a capsule, either bursting irregularly or 2-4-valved. Seeds numerous, small; albumen wanting; embryo either undivided or with very short cotyledons.
