Matucana haynei Otto

Echinocactus haynii Otto in Salm-Dyck, Cact. Hort. Dyck. 1849. 165. 1850.

Cereus hayni Croucher, Garden 13: 290. 1878.

Stems generally single, usually globular but sometimes short-cylindric, normally 8 to 10 cm. in diameter but in cultivation sometimes 30 cm. high, densely covered and nearly concealed under the numerous spines; ribs 25 or more, tuberculate; areoles set closely together, with an abundance of wool when young, but without any when old; spines numerous, long and weak, the stouter ones pungent, up to 3.5 cm. long, usually gray with dark or blackish tips; flower with a long slender tube, 6 to 7 cm. long; stigma-lobes green; scales on ovary and tube few, small, ovate.

Type locality: Obrajillo, Peru, but not cited in the original place of publication.

Distribution: Central Peru.

Dr. Rose found this species fairly common among rocks just below Matucana, Peru. Its long, slender, scarlet flowers make it a very desirable plant for cultivation. This species was collected in abundance by Dr. Rose in 1914 but it has not yet flowered in cultivation, although it was flowering when collected. The original spelling of the specific name was haynii, named, according to Rumpler, for Friedrich Gottlieb Hayne, a professor of botany in Berlin, who was born in 1832. Schumann in his Monograph wrote the name Echinocactus haynei and we have adopted his spelling.

In color, shape, and size, the flowers resemble those of species of Borzicactus (Cactaceae 2: 159); these, however, have the axils of scales on the corolla-tube hairy or woolly.

Echinocactus heynei (Monatsschr. Kakteenk. 20: 190. 1910) was never described. It may be simply a misspelling for E. haynei.

We have referred here the illustration from the Garden because it is made from the same cut as the four other illustrations cited below. It is there described, however, as a foot high with white flow-

Illustrations: Dict. Gard. Nicholson 1: f. 689; Cact. Journ. 1: 181; Watson, Cact. Cult. 103. f. 35; ed. 3. 54. f. 24, as Echinocactus haynei; Garden 13: 291, as Cereus hayni.

Figure 109 is from a photograph of a plant collected by Dr. and Mrs. Rose at Matucana, Peru, in 1914 (No. 18651).

Fig. 109.—Matucana haynei.

DESCRIBED SPECIES, PERHAPS OF THIS GENUS.

Echinocactus viLLOSUS (Monville) Labouret, Monogr. Cact. 239. 1853.

Cactus villosus Monville, Hort. Univ. 1: 223. 1839.

Echinocactuspolyrhaphis Pfeiffer in Förster, Handb. Cact. 297. 1846.

Echinocactus villosus crenatior Monville in Labouret, Monogr. Cact. 240. 1853.

Simple, subglobose or short-columnar, somewhat depressed; ribs 13 to 15, somewhat tuberculate, subcompressed, glaucous-green or somewhat violet or even blackish; radial spines 12 to 16, setaceous to subulate; central spines usually 4, 3 cm. long; flowers rose-colored without, white within; scales of the ovary an flower-tube naked in their axils.

Type locality: Not cited.

Distribution: Chile (fide Schumann); Lima, Peru (fide Labouret).

This species is said to resemble Echinocactus acutissimus but is described by Schumann as having naked scales and the axils of the scales also naked. If it came from near Lima,

Peru, as is usually stated, it is probably Echinocactus haynei. Söhrens claims it is from Huasco, Chile.

Gymnocalycium villosum Pfeiffer is given by Förster (Handb. Cact. 297. 1846) as a synonym of E. polyrhaphis. E. polyrhaphis is written polygraphis by Lahouret and polyraphis by Salm-Dyck.

Illustration: Möllers Deutsche Gärt. Zeit. 25: 474. f. 6, No. 26.

Echinocactus weberbaueri Vaupel, Bot. Jahrb. Engler 50: Beibl. 111: 26. 1913.

Depressed, 10 cm. broad, 7 cm. high; ribs 21, divided into terete tubercles; areoles rather close together, broadly elliptic; spines about 30, the longer ones 3.5 cm. long, straight; flowers tubular, 5.5. cm. long; ovary and flower-tube bearing lanceolate acute scales, these without hairs in their axils.

Type locality: Above Balsas in the department of Amazonas, Peru.

Distribution: Northeastern Peru.

Through the kindness of F. Vaupel we have been able to study a fragment of this very interesting species. It much resembles Matucana haynei.

Continue reading here: Hamatocactus gen nov

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