3^40 MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 
Heliomeris tenuifolia, see Viguiera stenolota. 
Herpcthamniis crassifolius, see Vacciiiium crassifolium. 
Hesperodoria scopulorum, see Aplopappus scopulorum. 
Hesperopeuce inert en si an a, see Tsiiga mertensiana. 
Heteromeles arbntifolia, see PJiotinia arhutifoUa. 
Heteromeles salicifolia, see Photinm arhutifolia. 
Heyderia decurrens, see Ll'bocedrus decurrens. 
Hicoria alba, see Carya alba. 
Hicoria aquatica, see Carya aquatica. 
Hicoria buckleyi, see Carya luckleyi. 
Hicoria carolinae-septentrionalis, see Carya caroliiiae-septentrionaJis. 
Hicoria cordiformis, see Carya cordiformis. 
Hicoria fernowiana, see Carya myristieaefor?nis. 
Hicoria floridana, see Carya floridana. 
Hicoria glabra, see Carya glabra. 
Hicoria laciniosa, see Carya laciniosa. 
Hicoria leiodermis, see Carya leiodermis. 
Hicoria microcarpa, see Carya microcarpa. 
Hicoria minima, see Carya cordiformis. 
Hicoria myristicaeformis, see Carya myristicaeformis. 
Hicoria ovalis, see Carya ovalis. 
Hicoria ovata, see Carya ovata. 
Hicoria pallida, see Carya pallida. 
Hicoria pecan, see Carya pecan. 
Hicoria sulcata, see Carya laciniosa. 
Hicoria texana, see Carya texana. 
Hicoria villosa, see Carya villosa. 
Hoffmansegg-ia microphylla Torr. 
Pange: 10. 
Site: Dry, well-drained, sun. 
Fruit : Legume. 
A small to large shrub ; flowers in April ; stems rushlike, forming a broad, 
rounded bush ; commonly occurs in sandy soils. 
Holacantha emoryi Gray. Crucifixion thorn. 
Range: 10, 11. 
Site: Dry, sun. 
Fruit; Nutlike drupe. 
A large dioecious, thorny, rigid, much-branched, nearly leafless shrub ; fruit- 
ing clusters very dense. 
Holodiscus spp. 
Propagation of all species is by seed sown in the fall. 
Observations (in addition to si)ecific records) : Relished by Olympic wapiti. 
Holodiscus discolor (Pursh) Maxim. Oceanspray. 
Spiraea discolor Pursh, Sericotkeca discolor (Pursh) Rydb. Schizonotus 
discolor (Pursh) Raf. 
Range: 1, 2, 4, 5, 12. 
Site: Dry, well-drained, sun. 
Fruit: Follicle. 
A large bushy shrub : flowers May-July ; often pioneers in burned-over areas. 
Var. microphyllus (Rydb.) Jeps. {E. micropliyllus Rydb., SericofJieca micro- 
phylla Rydb,), occurring in regions 4, 12, and 13, is a dwarf form. 
