KUNGL. SV. VET. AKADEMIENS HANDLINGAK. BAND 55. N:0 5. 



39 



B 



Nevertheless it is easily distinguishable both from this species and from all the 

 others by its very long lower stem-leaves with their long sheaths the margins of which 

 are white-green and shiny. The leaves are canaliculate and recurved in the top, always 

 three-nerved and with strong margins. Young ligules short and obtuse. By the peculiar 

 stigma, backwards forming a little beak, it appears as a parallel-form to P. rostratus of 

 the percedent section, with which in other respects it has but little affinity. The fruit 

 resembles, at a quick glance, that of P. 'pectinatus. However, partly it is a little smaller 

 and comparatively thicker, partly it has the ventral convexity higher up towards the 

 top, finally it has a very short obtuse rostrum with usually remaining stigma, 

 whereas the rostrum of pectinatus is more elongated, faintly recurved and subacute. 



In its youngest state, being only some centimeters in height or so, it bears an 

 extreme resemblance to P. filiformis by the elongated obtuse leaves. Such small 

 samples collected by Dr. S. He- 

 din in Thibet are stored in the 

 herbarium of the University of 

 Stockholm and some years ago 

 fallaciously determined by me as 

 P. filiformis which I am now cor- 

 recting. It is to be regretted that 

 we never arrive at the truth but 

 through some mistake or another. 



Distribution. High-Asia, a 

 specimen (hb. Lund.) probably 

 from Kuen-Luen, but labelled by 

 J. BAAaoE as collected by Ove 

 Paulsen in Pamir. Thibet, see 

 above. Tschatyr-kul, 11,000'— 

 12,000', 03, W. LiPSKY (hb. Haun.). — Probably some t pectinatus » -iorms from China 

 and Japan also might be reckoned here. 



C 



Fig. H. P. recurvatus Hagstr. J, Top of a stem le.if iu natural posi- 

 tion, -J. B, Top of a stem-leaf showing the form of the apex and the course 

 of the nerves, -^*. C, Top of a branch leaf, \°. J), Pistil, lateral view, a, 

 stigma, y. E, Fruit, lateral view, f. 



Subsectio 4. Pectinati (Fries) Hagstr. 

 Fructus rostro faciali ± protracto recurvatulo. 



P. pectinatus L. 



Species plantarum, 1753, 127. — P. marinus L., I. c. — P. siriatus Ruiz & 

 Pavon, F1. peruv. etc. I, 1798, 70, tab. 106, b. — P. interruptus Kitaibel in Schul- 

 TEs, Osterr. Fl. ed. 2, I, 1814, 328. — P. angustissimus Kunth, Nova gen. et sp. I, 

 1815, 370. — P. tenuifolius Kunth, 1. c. — P. Vaillantii Roemer et Schultes, 

 Systema veg. Ill, 1818, 514. — P. caricifolius Willdenow in Schultes, Mantissa in 

 vol. Ill etc. 1827, 367. — P. zosteraceus Fries, Novitise Fl. Suec. ed. 2, 1828. 51. — 



