APPENDIX. 



seems higher up, about Siku, where it luxuriates on the hot, hard, bare, and 

 shingly hills of loess about the town, and even wanders north about a day's 

 journey up the Nan Ho. It is a most beautiful plant, forming low masses of 

 glaucescent foliage from a woody trunk, from which rise foot-high racemes, 

 very graceful and delicate, beset with large blossoms of rose-purple-crirmon in 

 a long and elegant flight. Its bloom is in May, and the prickly rough burrs 

 that hold the seed await the frosts of November before they dry up and fall. 

 (H. midlijugiun.) 



Incarvillea Sp. (F 34).— With greatest uncertainty did I here include this 

 plant, which stands away from Incarvillea in having very minute seeds, wadded 

 up in white fluff in long and very narrow pods (Amphicomearguta). It is a most 

 handsome thing, herbaceous from a huge woody stock, with straight 2-foot 

 stems set with voluminous glossy foliage, and ending in big flights of lovely 

 rose-pink little Allamandas, clear and brilliant, in May. This I have only once 

 seen, and only in the hottest of walls and stony banks in the hot and parching 

 region about Wen Hsien, on the banks and embankments of the White Water. 



Incarvillea Sp. (F 89) lives in the hot limestone ledges of the Thunder- 

 crown foothills at 7000 to 8000 feet. It is magnificent in flower, and probably 

 is I. compacta. Unfortunately, all seed had fallen by the time our collecting 

 began. 



Incarvillea Sp. (F 97) has weakly branches of a foot or so, set with finely 

 feathered ferny foliage, and bearing from May to November a steadv flight of 

 lovely citron-yellow Allamandas. Its home is round Siku, on the verv walls 

 themselves, and on the hottest and driest and barest exposures on the hot, bare, 

 dry loess hills about the town. (/. Przeivalshji fumariaefolia, or new species.) 



Incarvillea Sp. (F 268). — This may be the same as F 89, but has quite a 

 different taste in habitats, not haunting ledges of rock, but open broad patches 

 of soil by the track-side ascending over the foothills of Monk Mountain. It is 

 reported a superb rose-red J. compacta cousin, and the seed-scapes are 8 to 

 12 inches in height. I can say no more ; ipse turn vidi : coll. W. Purdom. 



Indigofera Sp. (F 266) is but doubtfully Indigofera at all. It is a per- 

 fectly prostrate trailing plant, sending out from its crown 3 or 4 branch- 

 ing naked-looking sprays of 12 to 30 inches long, hugging the ground, 

 and densely set in late August with very brilliant crimson-purple blossoms 

 that suggest a much improved and flatly repent Cytisus purpureus. This lovely 

 thing occurs in the Nan Ho Valley, and abounds all over the hot loess hills about 

 Siku, on steep banks, and at the edges of stony fields, paths, etc. 



Indigofera Sp. (F 312) is one of the loveliest. It haunts only the hottest, 

 barest, driest, stoniest slopes of the torrid downs about the Black Water, where 

 it forms neat and very dense, intricate, woody bushlets of 6 to 8 inches high 

 and twice as much through, spinous and stiff, lacy with elegant tiny leafage, 

 and hanging out pairs of little pea-flowers of brilliant rose-pink in June, along 

 the many brief pungent sprays. Goats, despite its spininesses, keep it sedulously 

 cut into shape ; it especially loves to have plenty of stone and shingle in its 

 loam, and luxuriates beneath the Akropolis of Siku, where the rude forefathers 



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