国立情報学研究所 - ディジタル・シルクロード・プロジェクト
『東洋文庫所蔵』貴重書デジタルアーカイブ

A LIST OF FLOWERING PLANTS FROM INNER ASIA.

77

Herba pilis albis et simplicibus et ramosis molliter pilosa; racema florifera saltem in inferiore parte bracteis foliaceis pinnatis ornata.

Differt a Hutchinsia præter pilositatem seminibus compluribus notorrhizis, et a Capsella etiam præter pilositatem glandula mellifera ovato-globosa, fructu elliptico compresso-carinato, etc.

The plant which has been named Hutchinsia tibetiea Thorns. and Capsella Tiionmsonii Hook f., seems to be distinct from both genera, and on the other hand

somewhat intermediate between them. In spite of the difficulty in characterising the genera of the Cruciferce, I find it necessary to create a separate genus for the plant in question, apart from both Capsella and Hutchinsia; and the instability of its placing — by one author in Capsella and by another in Hutchinsia — shows that other botanists have felt difficulty when trying to find its proper place. I have made an examination of the glands at the base of the stamens and of the place of the myrosin-containing cells I, and I have found the glands of a rather globular shape, not elongated and curved as in Capsella. The myrosin cells are attached to the leptomatic part of the strands as in both the named genera. There is therefore no doubt that it is related to them. But it differs from both by its rich hairiness of both simple and branched hairs and by the foliaceous bracts of the raceme, a rare character in the family. From Capsella it differs further, as mentioned, by the shape of the glands and by the carinate elliptic pods, while from Hutchinsia it differs by the many-seeded pods.

If we follow the system worked out by A. v. HAYEK (1. c.) it would be most natural to place the new genus close to Hutchinsia amongst the subtribe Iberidinee under the tribe Lepidiece, but on the other hand Hedinia shows so much affinity to Capsella that HAYEK'S separation of Capsellince as special subtribe becomes weakened.

I hayed named the new genus in honour of the indefatigable and successful explorer Dr. SVEN HEDIN.

Hedinia tibetiea (Thorns.) Ostf. nov. comb.; Hutchinsia tibetiea T. Thomson, in Hook., Icon. pl. tab. 900 (1852); Smelovskia tibetiea Lipsky, in Acta Hort. Petrop. XXIII (I 904) 76; Fedtschenko, ibid. XXIV (1905) 320; XXVIII (I 909) 464; Capsella Thonzsonii Hook. f., in Journ. Linn. Soc. V (I 8 6 I) 172, et in Fl. Brit. India I (I 8 7 5) 159; Hemsley and Pearson, in Peterm. Mitteil. Ergänzungsbd. 28 (I 900) 373; Hemsley in Journ. Linn. Soc. 35 (1902) 168; Fedtschenko , in Acta Hort. Petropol. XXI (1903) 283.

Northern Tibet, the lake Kum-köl, Camp XVI, 3882 m., 28th July 1900 (flowering and with young pods) ; N. E. Tibet, Camp XVII, 5073 m., 2 nd Sept. 1896; Eastern

I Cfr. A. von HAYEK, Entwurf eines Cruciferen-Systems auf phylogenetischer Grundlage. Beih. Botan. Centralbl. Bd. XXVII, i. Abt., 1904.