Page:Transactions NZ Institute Volume 15.djvu/347
Ankistrodesmus acutissimus.
falcatus.
sp.*
sp.*
Scenedesmus acutus.
var. dimorphus.
obliquus.
obtusus.
DESCRIPTION OF PLATES XXIV. AND XXV.
| Fig. | 1 | Cosmarium ralfsii, var. β | × | 350. |
| {{{1}}}„ | 2 | Cosmarium thwaitesii | × | 700. |
| {{{1}}}„ | 3 | Cosmarium pusillum, dividing | × | 1000. |
| {{{1}}}„ | 4 | Cosmarium gemmiferum (a, front view × 350: b, end view × 400) | ||
| {{{1}}}„ | 5 | Cosmarium obsoletum, var. punctatum (a, front view: b, end view) | × | 350. |
| {{{1}}}„ | 6 | Cosmarium speciosum, var. inflatum (a, front view: b, side view) | × | 450. |
| {{{1}}}„ | 7 | Cosmarium cyclicum, var. ampliatum (a, front view: b, end view) | × | 350. |
| {{{1}}}„ | 8 | Cosmarium tetraophthalmum, var. β (a, conjugation with zygospore: b, front view: c, end view) | × | 350. |
| {{{1}}}„ | 9 | Cosmarium undulatum, var. β | × | 700. |
| {{{1}}}„ | 10 | Cosmarium tenue (a, front view: b, end view) | × | 700. |
| {{{1}}}„ | 11 | Staurastrum eustephanum, var. emarginatum (a, side view: b end view) | × | 700. |
| {{{1}}}„ | 12 | Staurastrum clepsydra (a, b, side view: c, d, e, f, end view: g, zygospore?) | × | 400. |
| {{{1}}}„ | 13 | Staurastrum furcigerum (a, 5-rayed: b, 6-rayed) | × | 350. |
| {{{1}}}„ | 14 | Closterium grimthii, two sizes | × | 400. |
| {{{1}}}„ | 15 | Cosmarium crenatum, N.Z. form | × | 400. |
| {{{1}}}„ | 16 | Micrasterias rotata, N.Z. forms (a, sharp teeth: b, truncate teeth: c, end lobe x 350: d, comparative sizes N.Z. and English forms) | × | 200. |
| {{{1}}}„ | 17 | Staurastrum gracile, N.Z. form | × | 400. |
| {{{1}}}„ | 18 | Closterium acerosum (a, fronds with varying arms: b, the same with zygospore) | × | 90. |
| {{{1}}}„ | 19 | Closterium selenasum, effect of glycerine | × | 60. |
| {{{1}}}„ | 20 | Scenedesums acutus | × | 400. |
| {{{1}}}„ | 21 | Holocystis (Tetrachastrum) incisa, abnormal | × | 200. |
| {{{1}}}„ | 22 | Docidium clavatum, abnormal | × | 90. |
Art. XXXII.—On a new Composite Plant. By Robert Brown.
Communicated by Professor Hutton.
[Read before the Philosophical Institute of Canterbury, 30th November, 1882.]
Glossogyne (?) hennedyi, sp. nov.
Plant a small excessively and irregularly branched under-shrub, from 6 to 12 inches high. Stem short, terete; bark pale brown; upper branches very slender, tetragonous, furrowed, bright green, hispid with stiff hairs. Leaves alternate, distant, from ¼ to ⅓ inch in length, sessile, linear-acute or subspathulate, entire or bi- or tridentate, midrib pellucid; under surface with short stiff hairs; upper or bract leaves linear-lanceolate, acute, small. Flower heads yellow ⅜ inch in diameter, single, terminal on the end of a short peduncle; receptacle conical, chaffy. Involucre campanulate: bracts equal, in two rows, the outer linear, blunt, with a tuft of rigid hairs at the