Elisena longipetala

Amaryllidaceae
Biblio : Curtis

Ismene

Herbert W. Curtis's Bot. Mag. v.67 ns.14. t.3873. (1841)

= Ismene longipetala (Lindl.) Meerow, 1990.

Ismene longipetala, Curtis tab.3873
Illustration : W. Herbert.
( 3873 )

ELISENA LONGIPETALA. LONG-LIMBED ELISENA.


Class and Order. HEXANDRIA MONOGYNIA. (Nat. Ord. - AMARYLLIDACE∆. Subord. AMARYLLIDE∆. ß. PANCRATIFORMES. ßß. 2. SEMINIBUS CARNOSIS. ) Generic Character.
Perianthium tubatum tubo brevi subcylindrico decurvo limbo reflexŤ patulo coron‚ cylindrace‚ deflex‚ complanatŤ depress‚, genitalia subfasciculatŤ declinata recurvata, an- therś breves incumbentes medio affixś, ovula margaritacea erecta, semina viridia rotunda, bubus fibris crassis persis- tentibus. Plantś Americanś, arenis gaudentes.
Specific Character and Synonym.
ELISENA longipetala; scapo ancipiti tripedali viridi, spath‚ biunciali marcescente bracteat‚, floribus circ. sex, pe- dunculis ľ-uncialibus, germine trigono 5/8-unc. tubo viridi 3/8-unc. limbo albo ultra-triunciali basi virente apice revoluto, coron‚ concolore complanatŤ subcylin- dric‚ petalo imo adpress‚, dentibus interstamineis revo- lutis irregulariter trifidis, genitalibus semifasciculatŤ assurgenter declinatis, stylo coronam 3-uncias fila- menta unciam ferŤ superante, polline pallidŤ flavo, ovulis binis in loculo singulo, seminibus magnis, foliis 8 acutis lamin‚ 1ĺ-unc. lat‚ viridi 18-21-uncialibus column‚ cylindrace‚ sub-16-unciali. W. H. ELISENA longipetala. Bot. Reg. 24. Misc. 79.
This plant was imported by RICHARD HARRISON, Esq., and having flowered with him at Aighburgh, near Liver- pool, was described in the Appendix to the Botanical Re- gister for 1838. Our specimen flowered at Spofforth in the greenhouse at the end of March in a six inch pot of white sand, with a very small admixture of loam, and produced eight leaves, with a scape above a yard high, and six flowers. It would undoubtedly succeed as well as ISMENE amancaes in a bed of white sand out of doors, if it can be kept back

from shooting so early in the spring, which will probably be effected without difficulty. The bulbs of ISMENE need not be set till May, and notwithstanding the want of warmth in the summer of 1839, I. amancaes had ripened seed out of doors at the commencement of July, and some of the bulbs continued flowering till August. E. longi- petala has completely the aspect of an ISMENE. The form of ISMENE deflexa, which has the cup reclining on the lower petals, and the upper filaments too long to fall into the cup, and therefore lying like bars across its mouth, brings the two genera nearer together, and makes it a question whe- ther ELISENA may not be rather a section of ISMENE. It differs in having the filaments long, almost fasciculate, declined with the points curved upwards, and the cup narrowly cylindrical, flattened as if by pressure from above, and the tube very short. If the bulb sent to Spofforth from Lima for E. ringens be correct, it has also a long column to the leaves, and the aspect of an ISMENE, and the figure in the Flora Peruv. is quite incorrect, but, as the plant has not flowered, it may perhaps not be correct. There seems to be a third species amongst Mr. MACLEAN'S specimens from Caxamarquilla on the East side of the Andes, (alt. 10,000 feet,) which differs from ringens in having a longer spathe, and filaments only half the lenth. The leaves also differ in being blunt, if the right leaves, which are detached, have been placed with the flowers. It will be desirable that live specimens of the three species should be inspected before any decision is made as to the question, whether ELISENA Should be considered as a section of ISMENE, which seems probable. The cup of E. longipetala properly leans on the lower petal, but the flower is apt to take a little twist, which throws it on the lower petal and one of the lateral sepals. The three species agree in a similar short bent tube, unlike that of ISMENE. The fibres of both ISMENE and ELISENA are very thick, fleshy, and permanent, continuing as sound as the bulb itself when kept through the winter in dry sand. The seed of E. longipetala is large, round, and green, like that of ISMENE. I. deflexa flowered finely in the open border at Spofforth at the end of July and in August, and bore the cold wet season of 1840 better than amancaes. W. H.
AMARYLLIDACE∆
ELISENA sublimis; scapo dodrantali, spath‚ triunciali sexflor‚ pedunculis 3/8-3/4-unc. tubo 3/8-unc. limbo albescente biunciali filamenta ĺ-unc. superante, coron‚ circ. ĺ-unc. acutŤ pluridentat‚, stylo limbum sub- śquante vel semunciam demum superante stigmate minuto. Speci- men in Andibus Caxamarquillś a dom. J. Maclean lectum. W. H.

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