Montanoa tomentosa Cerv. subsp. tomentosa

Authority

Funk, Victoria A. 1982. The systematics of Montanoa (Asteraceae, Heliantheae). Mem. New York Bot. Gard. 36: 1-133.

Family

Asteraceae

Scientific Name

Montanoa tomentosa Cerv. subsp. tomentosa

Description

Subspecies Description - Flowering (and Fruiting) Period: August-October (September-November).

Discussion

Type: MEXICO, Distrito Federal, riverbanks near México City, date and collector unknown. The holotype has not been located. Neotype: MEXICO, Distrito Federal, immediately W of Avenue Insurgentes and S of the Universidad Nacional Autónoma de México, in the pedregal area, common on rocky flats, 3 Sep 1976, R. L. Hartman & V. A. Funk 4225 (neotype, OS!; isoneotypes, K! MA! MEXU! MO! NY! TEX! UC! US!). The most likely place for the holotype is Madrid, but the specimen was not received on loan. A search of the Madrid herbarium by T. F. Stuessy (pers. comm.) was also unsuccessful. The description is, however, quite detailed, containing information on the flowering and fruiting heads as well as on the leaves and habit; it is unlikely that Cervantes could have been describing another taxon. Eriocoma tomentosa (Cerv.) Kuntze Rev. Gen. PI. 1: 336. 1891. Eriocoma floribunda H.B.K.. Nov. Gen. Sp. 4: 210. t. 396. 1820, nom. illegit. Type species of Eriocoma H.B.K., a later homonym of Eriocoma Nutt., Gen. Amer. PI. 1; 40 1818 Type’ MEXICO, Distrito Federal, between the sanctuary of Guadalupe and México City in dry places, 2200 m, Oct 1803-Jan 1804, A. von Humboldt & A. J. Bonpland 4394 (holotype, P-HBK, photo, OS!). Montanoa floribunda (H.B.K.) Schultz Bip. in K. Koch, Wochenschr. Vereines Befõrd. Gartenbaues Kõnigl. Preuss. Staaten 7: 406. 1864. Eriocoma fragrans D. Don in Sweet, Brit. FI. Gard. 11: 1. t. 44. 1830. Type: MEXICO, introduced by R. Barclay in 1827 (holotype not located, the illustration is taken as the holotype). Eriocoma heterophylla Schrader, Ind. Sem. Hort. Gott. 1833: 3. 1833. Type: MEXICO, location unknown, s.d., D. Muhlenfordt s.n. (holotype, not located). The author stated that this species has cordate leaves and that it is taller than Eriocoma floribunda H.B.K., suggesting that these are the only characters by which the two species differ. Because these features are known to be variable, it is here placed in synonymy along with E. floribunda. Montagnaea tomentosa Cerv. in Llave & Lex. var. cordifolia DC., Prodr. 5: 565. 1836. Type: MEXICO, near México City, 27 Jul 1827, J. L. Berlandier 574 pro parte (holotype, G-DC, photo IDC 800. 565:111.3!; isotypes, FI! W!). Both varieties described by de Candolle for M. tomentosa have the same Berlandier collection number (574), but they differ in date of collection. They were separated by the description of the blades, with those of M. tomentosa var. ternifolia oblong-lanceolate and those of M. tomentosa var. cordifolia cordate. Montagnaea tomentosa Cerv. in Llave & Lex. var. ternifolia DC., Prodr. 5: 565. 1836. Type: MEXICO, México to Chapolopa, 15 Jul 1827, J. L. Berlandier 574 pro parte (holotype, G-DC, photo IDC 800. 565:111.4!; isotypes, BM! FI[2]! G! OXF! S!). Montanoa ternifolia (DC.) Schultz Bip., Wochenschr. Vereines Befõrd. Gartenbaues Kõnigl. Preuss. Staaten 7: 406. 1864. Eriocoma ternifolia (DC.) Kuntze, Rev. Gen. PI. 1: 336. 1891. Montanoa pilosipalea S. F. Blake, Contr. U.S. Natl. Herb. 22: 612. 1924. Type: MEXICO, Puebla, Puebla, near Fort de la Guadalupe, 2170 m, 11 Nov 1906, Bro. G. Arsène 268a (holotype, US!). This fruiting specimen is in all respects identical to other members of this taxon except for the number of mature pales per head. Another collection, also by Arsène, from the same locality had a flowering specimen typical for the species.

Distribution

Distribution and Habitat: Central Mexico (Fig. 11); xeric to semi-xeric thorn forest and deserts; roadsides, stream banks, and arroyos; 1900-2800 m, usually 1900-2100 m.

Mexico North America|